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REVIEW 3 major objections 3 minor 2 cited by

Spin-orbit-enabled realization of arbitrary two-qubit gates on moving spins

T0 review · 3 major / 3 minor · reviewed 2026-08-05 · deepseek-v4-flash

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Pith's one-line read Two spin qubits shuttled together can realize any two-qubit gate

desk verdict The abstract promises a clean one-step two-qubit gate during spin shuttling, but the review packet contains an unrelated paper instead of the actual manuscript, so the derivation is unverifiable from this material. read the letter →

arxiv 2508.08394 v1 pith:VG6PY7CH submitted 2025-08-11 cond-mat.mes-hall quant-ph

D. Fernández-Fernández , Y. Matsumoto , L.M.K. Vandersypen , G. Platero , S. Bosco This is my paper
classification cond-mat.mes-hallquant-ph
keywords spinqubitsspin-orbitcouplingqubitshuttlingtwo-qubitgatesynthesisdoublequantumdotscontrolscalablecomputing
verification ladder T0 review T1 audit T2 compute T3 formal

The pith

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The reading

Spin-orbit coupling, the interaction that links a particle's spin to its motion, is normally treated as a nuisance when spin qubits are shuttled around a semiconductor chip. The paper argues it can instead be the actuator of a gate: two spin qubits in a double quantum dot are smoothly moved toward each other by gate voltages, and the spin-orbit interaction accumulated during the move generates a two-qubit operation. Controlling the shuttling speed and the waiting times gives enough independent parameters to realize any two-qubit gate with high fidelity, in a single transport step. If this holds, two-qubit operations no longer need to be decomposed into several static-dot pulse sequences, which cuts control overhead in shuttling-based quantum architectures.

What carries the argument

The load-bearing object is the shuttling-controlled effective two-qubit Hamiltonian generated by spin-orbit coupling. During transport, the spin-orbit interaction entangles each spin with its orbital motion, so the moving double dot acquires a spin-dependent interaction whose accumulated angle depends on how fast the qubits move and how long they wait at fixed separation. The two independent control dials are the shuttling speed, which sets the rate of the spin-orbit-induced rotation, and the waiting time, which sets the phase accumulated at a given configuration; the paper's construction uses these dials to cover the two-qubit unitary group. In short, the machinery converts a parasitic spin

What would settle it

Perform two-qubit gate tomography on the output of a designed shuttling sequence in a strong-spin-orbit double quantum dot over a grid of speed and wait-time settings; if the realized unitaries fail to cover the two-qubit unitary group, or if a target gate's fidelity is limited by shuttling-induced decoherence rather than improved by the protocol, the claim is falsified.

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Extended reading notes

Core claim

The paper's central claim is that a moving double quantum dot with strong intrinsic or extrinsic spin-orbit coupling is not an error-prone transport stage but a universal two-qubit gate generator. As two spin qubits are smoothly shuttled toward each other, spin-orbit coupling produces an effective two-qubit interaction whose rotation angles are set by the shuttling speed and by waiting intervals at chosen positions. The paper shows these two knobs provide sufficient independent control to synthesize any element of $\mathrm{SU}(4)$---that is, any two-qubit gate---with high fidelity. Because the gate is produced during transport, a wide family of two-qubit operations is realized in one step, w

Load-bearing premise

The load-bearing premise is that the shuttling motion can be engineered so the spin-orbit-induced two-qubit interaction has enough independent controls (speed and wait time) to generate every two-qubit unitary, while decoherence and spin relaxation during the move stay small enough for high-fidelity operation.

Editorial extensions

If this is right

  • A one-step shuttling protocol can implement any two-qubit gate, so compilers for shuttling-based quantum architectures do not need to decompose entangling gates into multi-pulse static-dot sequences.
  • The same spin-orbit coupling that limits shuttling fidelity can be engineered to serve as the gate actuator, relaxing the requirement to suppress spin-orbit effects during transport.
  • Gate time and control overhead shrink in scalable spin-qubit arrays that already rely on shuttling for connectivity, because two-qubit operations happen during the move itself.
  • Materials with strong spin-orbit coupling, previously seen as disadvantageous for spin qubits, become viable platforms for direct two-qubit gate synthesis.

Reading between the lines

Editorial extensions of the paper, not claims the author makes directly.

  • A natural extension, not claimed in the paper, is that shuttling waveforms could be jointly optimized for transport and gate synthesis, turning 'compute while moving' into a general design principle for spin-qubit arrays.
  • The same speed-and-wait parameterization may generalize to simultaneous shuttling of several qubits, where spin-orbit interactions during the move could generate multi-qubit gates in one step.
  • A testable extension would be to measure the reachable set of two-qubit unitaries over a grid of speed and wait settings; the paper's universality claim predicts that this set covers a neighborhood of the identity in $\mathrm{SU}(4)$.
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Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, and a circularity audit.

Referee Report

3 major / 3 minor

Summary. The submitted paper (arXiv:2508.08394) claims that two spin qubits in a semiconductor double quantum dot, smoothly shuttled toward each other, can realize an arbitrary high-fidelity two-qubit gate by controlling the shuttling speed and waiting times, using strong intrinsic or extrinsic spin-orbit interaction. The abstract further claims that performing two-qubit operations during transport enables a one-step realization of a wide range of two-qubit gates, reducing control overhead. The full text supplied to the referee, however, is an unrelated photonics paper on InGaAs/AlGaAs quantum dots (arXiv:2508.08400), not the manuscript under review. Consequently, the paper's Hamiltonian, controllability derivation, gate-construction procedure, and fidelity/error analysis could not be inspected. The available material is therefore insufficient to verify the central claim, although no internal inconsistency is evident from the abstract.

Significance. If the central claim is correct, the paper would be significant: it would turn spin-orbit-induced shuttling errors into a resource for direct, one-step implementation of arbitrary two-qubit gates, potentially reducing control overhead in scalable spin-qubit architectures. The claimed result is also falsifiable: it predicts that speed and wait-time control can span the full two-qubit unitary group (or at least a universal set). However, because the technical content is not available in the supplied review package, the significance is conditional on the missing derivation and error analysis.

major comments (3)
  1. [Abstract (and supplied full text)] The central claim of arbitrary two-qubit gate synthesis is asserted without any technical derivation. The supplied full text is a different arXiv paper (2508.08400) about InGaAs/AlGaAs quantum dots for photonic applications; it contains no double-dot spin-shuttling model. To make the claim auditable, the manuscript must provide a Hamiltonian for the moving spins, specify the spin-orbit terms, and give a constructive proof that the reachable set of the time-dependent evolution covers SU(4), or at least that the available controls generate a universal entangler together with single-qubit rotations.
  2. [Abstract] The phrase 'arbitrary high-fidelity two-qubit gate' is not quantified and no error analysis is presented. Since the abstract's central promise includes high fidelity, a load-bearing component of the claim is an error budget that accounts for spin relaxation, dephasing during shuttling, charge noise, and leakage. None of this appears in the available material. The full manuscript must show that the operational time scales remain below decoherence and relaxation time scales, and ideally state the expected gate fidelity as a function of shuttling parameters.
  3. [Abstract] The control mechanism is stated only as 'controlling the shuttling speed and waiting times.' This is not by itself enough to guarantee arbitrary two-qubit gates: if the interaction Hamiltonian is effectively fixed up to a scalar during the motion, speed and wait time provide only a small number of real parameters. The manuscript must demonstrate that the shuttling trajectory modulates the interaction in a sufficiently rich way (e.g., through changing exchange, spin-orbit phase, or orbital effects) to generate the required independent control parameters, and must specify the shuttling protocol precisely.
minor comments (3)
  1. [Abstract] The term 'arbitrary' should be defined: does it mean exact synthesis of every unitary in SU(4), or universal up to a given approximation? The fidelity threshold for 'high-fidelity' should also be stated numerically.
  2. [Abstract] Please clarify whether the scheme relies specifically on intrinsic or extrinsic spin-orbit interaction, and which materials or electric-field configurations are assumed. The abstract currently mentions both, which may be intentional but needs a concrete model.
  3. [Full text (supplied)] The full text included in this review package is an unrelated paper on InGaAs/AlGaAs quantum dots (arXiv:2508.08400). The correct manuscript text for arXiv:2508.08394 must be provided before the refereeing process can continue.

Circularity Check

0 steps flagged · score 0.0 of 10

No circularity demonstrable from the available abstract-only text; no equations or fitted parameters are present.

full rationale

The only available portion of arXiv:2508.08394 is the abstract; the supplied full text belongs to a different arXiv paper (2508.08400) about InGaAs/AlGaAs quantum dots and is unrelated to the claimed two-qubit-gate derivation. Within the abstract, the central claim is that two spin qubits in a double quantum dot, smoothly shuttled toward each other, can realize an arbitrary high-fidelity two-qubit gate by controlling shuttling speed and waiting times, leveraging strong intrinsic or extrinsic spin-orbit interaction. No equations, parameter fits, self-citations, or uniqueness theorems appear in the abstract. The control parameters named (shuttling speed and waiting times) are physical control knobs, not fitted constants that are later relabeled as predictions. Whether the full paper provides a constructive controllability proof covering SU(4) or an error budget showing that decoherence during shuttling is negligible cannot be checked from the abstract alone. Under the hard rule that circularity must be exhibited by quoting specific equations or reductions, no circular step can be identified. An absence of supporting detail is an evidence gap, not a demonstrated circularity. Therefore the appropriate finding is no significant circularity in the available text, with score 0.

Assumptions & free parameters 0 free parameters · 3 assumptions · 0 invented entities

Since only the abstract is available, the ledger is necessarily thin. No free parameters or invented entities are visible. The central assumptions are the coherence of shuttling and the controllability of the spin-orbit-induced two-qubit Hamiltonian. Full audit requires the actual manuscript.

assumptions (3)
  • standard math Quantum mechanical description of two spin qubits in a double quantum dot with spin-orbit interaction
    The entire claim assumes a spin-qubit Hamiltonian with spin-orbit coupling and controllable tunneling; this is the framework of the proposal, inferred from the abstract.
  • domain assumption Smooth shuttling preserves qubit coherence during the gate
    The abstract assumes 'smoothly moved' qubits and 'high-fidelity' gates, which requires that shuttling does not induce decoherence, spin relaxation, or significant non-adiabatic errors. This is a physical assumption, not established in the abstract.
  • domain assumption The effective evolution during shuttling has sufficient controllability (speed and wait time) to generate any two-qubit unitary
    The central result that arbitrary two-qubit gates are realizable requires the generated Hamiltonian and controls to be universal; this is a load-bearing modeling assumption that the abstract asserts but does not demonstrate.

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Cite this review

Pith. "Pith review of Spin-orbit-enabled realization of arbitrary two-qubit gates on moving spins." pith.science (2026). https://pith.science/paper/VG6PY7CH

@misc{pith2026250808394,
  author       = {Pith},
  title        = {Pith review of: Spin-orbit-enabled realization of arbitrary two-qubit gates on moving spins},
  year         = {2026},
  howpublished = {\url{https://pith.science/paper/VG6PY7CH}},
  note         = {Machine review of arXiv:2508.08394}
}
read the original abstract

Shuttling spin qubits in systems with large spin-orbit interaction (SOI) can cause errors during motion. However, in this work, we demonstrate that SOI can be harnessed to implement an arbitrary high-fidelity two-qubit (2Q) gate. We consider two spin qubits defined in a semiconductor double quantum dot that are smoothly moved toward each other by gate voltages. We show that an arbitrary high-fidelity 2Q gate can be realized by controlling the shuttling speed and waiting times, and leveraging strong intrinsic or extrinsic SOI. Crucially, performing 2Q operations during qubit transport enables a one-step realization of a wide range of 2Q gates, which often involve several steps when implemented using static dots. Our findings establish a practical route toward direct implementation of any 2Q gate via spin shuttling, significantly reducing control overhead in scalable quantum computing architectures.

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Forward citations

Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Spin qubit operations by conveyor-mode shuttling

    cond-mat.mes-hall 2026-06 unverdicted novelty 6.0 of 10

    Conveyor-mode electron shuttling enables high-fidelity single-qubit rotations via EDSR and tunable two-qubit interactions via diabatic gates in semiconductor spin qubits.

  2. Theory of spin qubits and the path to scalability

    quant-ph 2026-04 unverdicted novelty 2.0 of 10

    A review summarizing spin qubit platforms, long-range coupling methods, and a proposal for topological linking toward scalable quantum information processing.

Reference graph

Works this paper leans on

97 extracted references · 37 canonical work pages · cited by 2 Pith papers

  1. [1]

    \ Zhong , author H

    author author H.-S. \ Zhong , author H. Wang , author Y.-H. \ Deng , author M.-C. \ Chen , author L.-C. \ Peng , author Y.-H. \ Luo , author J. Qin , author D. Wu , author X. Ding , author Y. Hu , author P. Hu , author X.-Y. \ Yang , author W.-J. \ Zhang , author H. Li , author Y. Li , author X. Jiang , author L. Gan , author G. Yang , author L. You , aut...

    2020

  2. [2]

    Wu , author W.-S

    author author Y. Wu , author W.-S. \ Bao , author S. Cao , author F. Chen , author M.-C. \ Chen , author X. Chen , author T.-H. \ Chung , author H. Deng , author Y. Du , author D. Fan , author M. Gong , author C. Guo , author C. Guo , author S. Guo , author L. Han , author L. Hong , author H.-L. \ Huang , author Y.-H. \ Huo , author L. Li , author N. Li ,...

    2021

  3. [3]

    Bravyi , author A

    author author S. Bravyi , author A. W. \ Cross , author J. M. \ Gambetta , author D. Maslov , author P. Rall ,\ and\ author T. J. \ Yoder ,\ title title High-threshold and low-overhead fault-tolerant quantum memory ,\ https://doi.org/10.1038/s41586-024-07107-7 journal journal Nature \ volume 627 ,\ pages 778 ( year 2024 ) NoStop

    doi:10.1038/s41586-024-07107-7 2024

  4. [4]

    author author H. Goto ,\ title title High-performance fault-tolerant quantum computing with many-hypercube codes ,\ https://doi.org/10.1126/sciadv.adp6388 journal journal Science Advances \ volume 10 ,\ pages eadp6388 ( year 2024 ) NoStop

    doi:10.1126/sciadv.adp6388 2024

  5. [5]

    author author L. M. K. \ Vandersypen \ and\ author M. A. \ Eriksson ,\ title title Quantum computing with semiconductor spins ,\ https://doi.org/10.1063/pt.3.4270 journal journal Physics Today \ volume 72 ,\ pages 38 ( year 2019 ) NoStop

    work page doi:10.1063/pt.3.4270 2019

  6. [6]

    György , author A

    author author Z. György , author A. Pályi ,\ and\ author G. Széchenyi ,\ title title Electrically driven spin resonance with bichromatic driving ,\ https://doi.org/10.1103/physrevb.106.155412 journal journal Physical Review B \ volume 106 ,\ pages 155412 ( year 2022 ) NoStop

    doi:10.1103/physrevb.106.155412 2022

  7. [7]

    Burkard , author T

    author author G. Burkard , author T. D. \ Ladd , author A. Pan , author J. M. \ Nichol ,\ and\ author J. R. \ Petta ,\ title title Semiconductor spin qubits ,\ https://doi.org/10.1103/revmodphys.95.025003 journal journal Reviews of Modern Physics \ volume 95 ,\ pages 025003 ( year 2023 ) NoStop

    doi:10.1103/revmodphys.95.025003 2023

  8. [8]

    Hansen , author A

    author author I. Hansen , author A. E. \ Seedhouse , author K. W. \ Chan , author F. E. \ Hudson , author K. M. \ Itoh , author A. Laucht , author A. Saraiva , author C. H. \ Yang ,\ and\ author A. S. \ Dzurak ,\ title title Implementation of an advanced dressing protocol for global qubit control in silicon ,\ https://doi.org/10.1063/5.0096467 journal jou...

    work page doi:10.1063/5.0096467 2022

Show all 97 references
  1. [9]

    author author N. D. \ Foster , author J. D. \ Henshaw , author M. Rudolph , author D. R. \ Luhman ,\ and\ author R. M. \ Jock ,\ title title Dephasing and error dynamics affecting a singlet-triplet qubit during coherent spin shuttling ,\ https://doi.org/10.1038/s41534-025-0099...

    2025 doi

  2. [10]

    author author I. F. \ de Fuentes , author E. Raymenants , author B. Undseth , author O. Pietx-Casas , author S. P. M. \ Mądzik , author S. L. \ de Snoo , author S. V. \ Amitonov , author L. Tryputen , author A. T. \ Schmitz , author A. Y. \ Matsuura , author G. Scappucci ,\ an...

    2025

  3. [11]

    Xue , author M

    author author X. Xue , author M. Russ , author N. Samkharadze , author B. Undseth , author A. Sammak , author G. Scappucci ,\ and\ author L. M. K. \ Vandersypen ,\ title title Quantum logic with spin qubits crossing the surface code threshold ,\ https://doi.org/10.1038/s41586-...

    2022 doi

  4. [12]

    Noiri , author K

    author author A. Noiri , author K. Takeda , author T. Nakajima , author T. Kobayashi , author A. Sammak , author G. Scappucci ,\ and\ author S. Tarucha ,\ title title Fast universal quantum gate above the fault-tolerance threshold in silicon ,\ https://doi.org/10.1038/s41586-0...

    2022 doi

  5. [13]

    Maurand , author X

    author author R. Maurand , author X. Jehl , author D. Kotekar-Patil , author A. Corna , author H. Bohuslavskyi , author R. Laviéville , author L. Hutin , author S. Barraud , author M. Vinet , author M. Sanquer ,\ and\ author S. De Franceschi ,\ title title A CMOS silicon spin ...

    2016 doi

  6. [14]

    author author A. M. J. \ Zwerver , author T. Krähenmann , author T. F. \ Watson , author L. Lampert , author H. C. \ George , author R. Pillarisetty , author S. A. \ Bojarski , author P. Amin , author S. V. \ Amitonov , author J. M. \ Boter , author R. Caudillo , author D. Cor...

    2022

  7. [15]

    Geyer , author B

    author author S. Geyer , author B. Hetényi , author S. Bosco , author L. C. \ Camenzind , author R. S. \ Eggli , author A. Fuhrer , author D. Loss , author R. J. \ Warburton , author D. M. \ Zumbühl ,\ and\ author A. V. \ Kuhlmann ,\ title title Anisotropic exchange interactio...

    2024 doi

  8. [16]

    Huckemann , author P

    author author T. Huckemann , author P. Muster , author W. Langheinrich , author V. Brackmann , author M. Friedrich , author N. D. \ Komerički , author L. K. \ Diebel , author V. Stieß , author D. Bougeard , author Y. Yamamoto , author F. Reichmann , author M. H. \ Zoellner , a...

    2025

  9. [17]

    author author L. M. K. \ Vandersypen , author H. Bluhm , author J. S. \ Clarke , author A. S. \ Dzurak , author R. Ishihara , author A. Morello , author D. J. \ Reilly , author L. R. \ Schreiber ,\ and\ author M. Veldhorst ,\ title title Interfacing spin qubits in quantum dots...

    2017 doi

  10. [18]

    Künne , author A

    author author M. Künne , author A. Willmes , author M. Oberländer , author C. Gorjaew , author J. D. \ Teske , author H. Bhardwaj , author M. Beer , author E. Kammerloher , author R. Otten , author I. Seidler , author R. Xue , author L. R. \ Schreiber ,\ and\ author H. Bluhm ,...

    2024 doi

  11. [19]

    Ginzel , author M

    author author F. Ginzel , author M. Fellner , author C. Ertler , author L. R. \ Schreiber , author H. Bluhm ,\ and\ author W. Lechner ,\ title title Scalable parity architecture with a shuttling-based spin qubit processor ,\ https://doi.org/10.1103/physrevb.110.075302 journal ...

    2024 doi

  12. [20]

    Zwerver , author S

    author author A. Zwerver , author S. Amitonov , author S. de Snoo , author M. Mądzik , author M. Rimbach-Russ , author A. Sammak , author G. Scappucci ,\ and\ author L. Vandersypen ,\ title title Shuttling an Electron Spin through a Silicon Quantum Dot Array ,\ https://doi.org...

    2023 doi

  13. [21]

    van Riggelen-Doelman , author C.-A

    author author F. van Riggelen-Doelman , author C.-A. \ Wang , author S. L. \ de Snoo , author W. I. L. \ Lawrie , author N. W. \ Hendrickx , author M. Rimbach-Russ , author A. Sammak , author G. Scappucci , author C. Déprez ,\ and\ author M. Veldhorst ,\ title title Coherent s...

    2024 doi

  14. [22]

    Struck , author M

    author author T. Struck , author M. Volmer , author L. Visser , author T. Offermann , author R. Xue , author J.-S. \ Tu , author S. Trellenkamp , author . Cywiński , author H. Bluhm ,\ and\ author L. R. \ Schreiber ,\ title title Spin-EPR-pair separation by conveyor-mode singl...

    2024 doi

  15. [23]

    De Smet , author Y

    author author M. De Smet , author Y. Matsumoto , author A.-M. J. \ Zwerver , author L. Tryputen , author S. L. \ de Snoo , author S. V. \ Amitonov , author S. R. \ Katiraee-Far , author A. Sammak , author N. Samkharadze , author \"O . G \"u l , author R. N. M. \ Wasserman , au...

    2025 doi

  16. [24]

    author author K. C. \ Nowack , author F. H. L. \ Koppens , author Y. V. \ Nazarov ,\ and\ author L. M. K. \ Vandersypen ,\ title title Coherent Control of a Single Electron Spin with Electric Fields ,\ https://doi.org/10.1126/science.1148092 journal journal Science \ volume 31...

    2007 doi

  17. [25]

    Fernández-Fernández , author J

    author author D. Fernández-Fernández , author J. Picó-Cortés , author S. Vela Li\ n án ,\ and\ author G. Platero ,\ title title Photo-assisted spin transport in double quantum dots with spin–orbit interaction ,\ https://doi.org/10.1088/2515-7639/acd1b7 journal journal Journal ...

    2023 doi

  18. [26]

    John , author F

    author author V. John , author F. Borsoi , author Z. György , author C.-A. \ Wang , author G. Széchenyi , author F. van Riggelen-Doelman , author W. I. \ Lawrie , author N. W. \ Hendrickx , author A. Sammak , author G. Scappucci , author A. Pályi ,\ and\ author M. Veldhorst ,\...

    2024 doi

  19. [27]

    Bosco , author J

    author author S. Bosco , author J. Zou ,\ and\ author D. Loss ,\ title title High-Fidelity Spin Qubit Shuttling via Large Spin-Orbit Interactions ,\ https://doi.org/10.1103/prxquantum.5.020353 journal journal PRX Quantum \ volume 5 ,\ pages 020353 ( year 2024 ) NoStop

    2024 doi

  20. [28]

    Fernández-Fernández , author Y

    author author D. Fernández-Fernández , author Y. Ban ,\ and\ author G. Platero ,\ title title Flying Spin Qubits in Quantum Dot Arrays Driven by Spin-Orbit Interaction ,\ https://doi.org/10.22331/q-2024-11-21-1533 journal journal Quantum \ volume 8 ,\ pages 1533 ( year 2024 ) NoStop

    2024 doi

  21. [29]

    \ Wang , author V

    author author C.-A. \ Wang , author V. John , author H. Tidjani , author C. X. \ Yu , author A. S. \ Ivlev , author C. Déprez , author F. van Riggelen-Doelman , author B. D. \ Woods , author N. W. \ Hendrickx , author W. I. L. \ Lawrie , author L. E. A. \ Stehouwer , author S....

    2024

  22. [30]

    Spethmann , author S

    author author M. Spethmann , author S. Bosco , author A. Hofmann , author J. Klinovaja ,\ and\ author D. Loss ,\ title title High-fidelity two-qubit gates of hybrid superconducting-semiconducting singlet-triplet qubits ,\ https://doi.org/10.1103/physrevb.109.085303 journal jou...

    2024 doi

  23. [31]

    Qi , author Z.-H

    author author J. Qi , author Z.-H. \ Liu ,\ and\ author H. Xu ,\ title title Spin–orbit interaction enabled high-fidelity two-qubit gates ,\ https://doi.org/10.1088/1367-2630/ad19ab journal journal New Journal of Physics \ volume 26 ,\ pages 013012 ( year 2024 ) NoStop

    2024 doi

  24. [32]

    Bosco \ and\ author M

    author author S. Bosco \ and\ author M. Rimbach-Russ ,\ @noop title Exchange-Only Spin-Orbit Qubits in Silicon and Germanium ( year 2024 ),\ https://arxiv.org/abs/2410.05461 arXiv:2410.05461 NoStop

    2024

  25. [33]

    Rimbach-Russ , author V

    author author M. Rimbach-Russ , author V. John , author B. van Straaten ,\ and\ author S. Bosco ,\ @noop title A spinless spin qubit ( year 2024 ),\ https://arxiv.org/abs/2412.13658 arXiv:2412.13658 NoStop

    2024

  26. [34]

    author author M. T. P. \ Nguyen , author M. Rimbach-Russ , author L. M. K. \ Vandersypen ,\ and\ author S. Bosco ,\ @noop title Single-step high-fidelity three-qubit gates by anisotropic chiral interactions ( year 2025 ),\ https://arxiv.org/abs/2503.12182 arXiv:2503.12182 NoStop

    2025 arXiv

  27. [35]

    Seidler , author T

    author author I. Seidler , author T. Struck , author R. Xue , author N. Focke , author S. Trellenkamp , author H. Bluhm ,\ and\ author L. R. \ Schreiber ,\ title title Conveyor-mode single-electron shuttling in Si/SiGe for a scalable quantum computing architecture ,\ https://d...

    2022 doi

  28. [36]

    Langrock , author J

    author author V. Langrock , author J. A. \ Krzywda , author N. Focke , author I. Seidler , author L. R. \ Schreiber ,\ and\ author . Cywiński ,\ title title Blueprint of a Scalable Spin Qubit Shuttle Device for Coherent Mid-Range Qubit Transfer in Disordered Si/SiGe/SiO2 ,\ ht...

    2023 doi

  29. [37]

    Xue , author M

    author author R. Xue , author M. Beer , author I. Seidler , author S. Humpohl , author J.-S. \ Tu , author S. Trellenkamp , author T. Struck , author H. Bluhm ,\ and\ author L. R. \ Schreiber ,\ title title Si/SiGe QuBus for single electron information-processing devices with ...

    2024 doi

  30. [38]

    Nagai , author T

    author author R. Nagai , author T. Takemoto , author Y. Wachi ,\ and\ author H. Mizuno ,\ @noop title Digital-Controlled Method of Conveyor-Belt Spin Shuttling in Silicon for Large-Scale Quantum Computation ( year 2025 ),\ https://arxiv.org/abs/2502.20955 arXiv:2502.20955 NoStop

    2025

  31. [39]

    Matsumoto , author M

    author author Y. Matsumoto , author M. De Smet , author L. Tryputen , author S. L. \ de Snoo , author S. V. \ Amitonov , author A. Sammak , author M. Rimbach-Russ , author G. Scappucci ,\ and\ author L. M. K. \ Vandersypen ,\ @noop title Two-qubit logic and teleportation with ...

    2025 arXiv

  32. [40]

    Kyriienko \ and\ author V

    author author O. Kyriienko \ and\ author V. E. \ Elfving ,\ title title Generalized quantum circuit differentiation rules ,\ https://doi.org/10.1103/physreva.104.052417 journal journal Physical Review A \ volume 104 ,\ pages 052417 ( year 2021 ) NoStop

    2021 doi

  33. [41]

    author author L. B. \ Nguyen , author Y. Kim , author A. Hashim , author N. Goss , author B. Marinelli , author B. Bhandari , author D. Das , author R. K. \ Naik , author J. M. \ Kreikebaum , author A. N. \ Jordan , author D. I. \ Santiago ,\ and\ author I. Siddiqi ,\ title ti...

    2024 doi

  34. [42]

    Zhang , author J

    author author J. Zhang , author J. Vala , author S. Sastry ,\ and\ author K. B. \ Whaley ,\ title title Minimum Construction of Two-Qubit Quantum Operations ,\ https://doi.org/10.1103/physrevlett.93.020502 journal journal Physical Review Letters \ volume 93 ,\ pages 020502 ( y...

    2004 doi

  35. [43]

    Siegel , author Z

    author author A. Siegel , author Z. Cai , author H. Jnane , author B. Koczor , author S. Pexton , author A. Strikis ,\ and\ author S. Benjamin ,\ @noop title Snakes on a Plane: mobile, low dimensional logical qubits on a 2D surface ( year 2025 ),\ https://arxiv.org/abs/2501.02...

    2025 arXiv

  36. [44]

    Fillion-Gourdeau , author E

    author author F. Fillion-Gourdeau , author E. Lorin ,\ and\ author A. D. \ Bandrauk ,\ title title Numerical solution of the time-dependent Dirac equation in coordinate space without fermion-doubling ,\ https://doi.org/10.1016/j.cpc.2012.02.012 journal journal Computer Physics...

    2012 doi

  37. [45]

    author author R. Glowinski ,\ @noop title Splitting Methods in Communication, Imaging, Science, and Engineering ,\ Scientific Computation Ser.\ ( publisher Springer International Publishing ,\ address Cham ,\ year 2017 ) NoStop

    2017

  38. [46]

    Choi \ and\ author J

    author author S. Choi \ and\ author J. Vaníček ,\ title title Efficient geometric integrators for nonadiabatic quantum dynamics. I. The adiabatic representation ,\ https://doi.org/10.1063/1.5092611 journal journal The Journal of Chemical Physics \ volume 150 ,\ pages 204112 ( ...

    2019 doi

  39. [47]

    Roulet \ and\ author J

    author author J. Roulet \ and\ author J. Vaníček ,\ title title An implicit split-operator algorithm for the nonlinear time-dependent Schrödinger equation ,\ https://doi.org/10.1063/5.0071153 journal journal The Journal of Chemical Physics \ volume 155 ,\ pages 204109 ( year 2...

    2021 doi

  40. [48]

    Hetényi , author C

    author author B. Hetényi , author C. Kloeffel ,\ and\ author D. Loss ,\ title title Exchange interaction of hole-spin qubits in double quantum dots in highly anisotropic semiconductors ,\ https://doi.org/10.1103/physrevresearch.2.033036 journal journal Physical Review Research...

    2020 doi

  41. [49]

    Saez-Mollejo , author D

    author author J. Saez-Mollejo , author D. Jirovec , author Y. Schell , author J. Kukucka , author S. Calcaterra , author D. Chrastina , author G. Isella , author M. Rimbach-Russ , author S. Bosco ,\ and\ author G. Katsaros ,\ title title Exchange anisotropies in microwave-driv...

    2025 doi

  42. [50]

    Hetényi , author S

    author author B. Hetényi , author S. Bosco ,\ and\ author D. Loss ,\ title title Anomalous Zero-Field Splitting for Hole Spin Qubits in Si and Ge Quantum Dots ,\ https://doi.org/10.1103/physrevlett.129.116805 journal journal Physical Review Letters \ volume 129 ,\ pages 116805...

    2022 doi

  43. [51]

    @noop title See Supplementary Material at () for more details on (i) how to numerically implement the total Hamiltonian, (ii) the calculation of the effective Hamiltonian, (iii) gate fidelities for the setups studied here and additional configurations, (iv) analysis of systema...

  44. [52]

    Khaneja \ and\ author S

    author author N. Khaneja \ and\ author S. J. \ Glaser ,\ title title Cartan decomposition of SU(2n) and control of spin systems ,\ https://doi.org/10.1016/s0301-0104(01)00318-4 journal journal Chemical Physics \ volume 267 ,\ pages 11 ( year 2001 ) NoStop

    2001 doi

  45. [53]

    author author M. J. \ Bremner , author C. M. \ Dawson , author J. L. \ Dodd , author A. Gilchrist , author A. W. \ Harrow , author D. Mortimer , author M. A. \ Nielsen ,\ and\ author T. J. \ Osborne ,\ title title Practical Scheme for Quantum Computation with Any Two-Qubit Ent...

    2002 doi

  46. [54]

    author author R. R. \ Tucci ,\ @noop title An Introduction to Cartan's KAK Decomposition for QC Programmers ( year 2005 ),\ https://arxiv.org/abs/quant-ph/0507171 arXiv:quant-ph/0507171 NoStop

    2005 arXiv

  47. [55]

    author author Y. Makhlin ,\ title title Nonlocal Properties of Two-Qubit Gates and Mixed States, and the Optimization of Quantum Computations ,\ https://doi.org/10.1023/a:1022144002391 journal journal Quantum Information Processing \ volume 1 ,\ pages 243 ( year 2002 ) NoStop

    2002 doi

  48. [56]

    author author F. A. \ Calderon-Vargas \ and\ author J. P. \ Kestner ,\ title title Directly accessible entangling gates for capacitively coupled singlet-triplet qubits ,\ https://doi.org/10.1103/physrevb.91.035301 journal journal Physical Review B \ volume 91 ,\ pages 035301 (...

    2015 doi

  49. [57]

    Cayao , author M

    author author J. Cayao , author M. Benito ,\ and\ author G. Burkard ,\ title title Programable two-qubit gates in capacitively coupled flopping-mode spin qubits ,\ https://doi.org/10.1103/physrevb.101.195438 journal journal Physical Review B \ volume 101 ,\ pages 195438 ( year...

    2020 doi

  50. [58]

    Zhang , author J

    author author J. Zhang , author J. Vala , author S. Sastry ,\ and\ author K. B. \ Whaley ,\ title title Geometric theory of nonlocal two-qubit operations ,\ https://doi.org/10.1103/physreva.67.042313 journal journal Physical Review A \ volume 67 ,\ pages 042313 ( year 2003 ) NoStop

    2003 doi

  51. [59]

    Satoh , author S

    author author T. Satoh , author S. Oomura , author M. Sugawara ,\ and\ author N. Yamamoto ,\ title title Pulse-Engineered Controlled-V Gate and Its Applications on Superconducting Quantum Device ,\ https://doi.org/10.1109/tqe.2022.3170008 journal journal IEEE Transactions on Q...

    2022

  52. [60]

    author author L. H. \ Pedersen , author N. M. \ Møller ,\ and\ author K. Mølmer ,\ title title Fidelity of quantum operations ,\ https://doi.org/10.1016/j.physleta.2007.02.069 journal journal Physics Letters A \ volume 367 ,\ pages 47 ( year 2007 ) NoStop

    2007 doi

  53. [61]

    author author A. J. \ Weinstein , author M. D. \ Reed , author A. M. \ Jones , author R. W. \ Andrews , author D. Barnes , author J. Z. \ Blumoff , author L. E. \ Euliss , author K. Eng , author B. H. \ Fong , author S. D. \ Ha , author D. R. \ Hulbert , author C. A. C. \ Jack...

    2023

  54. [62]

    Zanardi , author C

    author author P. Zanardi , author C. Zalka ,\ and\ author L. Faoro ,\ title title Entangling power of quantum evolutions ,\ https://doi.org/10.1103/physreva.62.030301 journal journal Physical Review A \ volume 62 ,\ pages 030301 ( year 2000 ) NoStop

    doi

  55. [63]

    author author A. C. \ Nakhl , author T. Quella ,\ and\ author M. Usman ,\ title title Calibrating the role of entanglement in variational quantum circuits ,\ https://doi.org/10.1103/physreva.109.032413 journal journal Physical Review A \ volume 109 ,\ pages 032413 ( year 2024 ) NoStop

    2024 doi

  56. [64]

    Tsoukalas , author A

    author author K. Tsoukalas , author A. Orekhov , author B. Hetényi , author U. von Lüpke , author J. Arunseangroj , author I. Seidler , author L. Sommer , author E. G. \ Kelly , author L. Massai , author M. Aldeghi , author M. Pita-Vidal , author S. W. \ Bedell , author S. Par...

    2025 arXiv

  57. [65]

    Arute , author K

    author author F. Arute , author K. Arya , author R. Babbush , author D. Bacon , author J. C. \ Bardin , author R. Barends , author R. Biswas , author S. Boixo , author F. G. S. L. \ Brandao , author D. A. \ Buell , author B. Burkett , author Y. Chen , author Z. Chen , author B...

    2019

  58. [66]

    Foxen , author C

    author author B. Foxen , author C. Neill , author A. Dunsworth , author P. Roushan , author B. Chiaro , author A. Megrant , author J. Kelly , author Z. Chen , author K. Satzinger , author R. Barends , author F. Arute , author K. Arya , author R. Babbush , author D. Bacon , aut...

    2020

  59. [67]

    Aldeghi , author R

    author author M. Aldeghi , author R. Allenspach ,\ and\ author G. Salis ,\ title title Modular nanomagnet design for spin qubits confined in a linear chain ,\ https://doi.org/10.1063/5.0139670 journal journal Applied Physics Letters \ volume 122 ,\ pages 094001 ( year 2023 ) NoStop

    2023 doi

  60. [68]

    Bosco , author M

    author author S. Bosco , author M. Benito , author C. Adelsberger ,\ and\ author D. Loss ,\ title title Squeezed hole spin qubits in Ge quantum dots with ultrafast gates at low power ,\ https://doi.org/10.1103/physrevb.104.115425 journal journal Physical Review B \ volume 104 ...

    2021 doi

  61. [69]

    author author S. D. \ Liles , author F. Martins , author D. S. \ Miserev , author A. A. \ Kiselev , author I. D. \ Thorvaldson , author M. J. \ Rendell , author I. K. \ Jin , author F. E. \ Hudson , author M. Veldhorst , author K. M. \ Itoh , author O. P. \ Sushkov , author T....

    2021 doi

  62. [70]

    author author J. C. \ Abadillo-Uriel , author E. A. \ Rodríguez-Mena , author B. Martinez ,\ and\ author Y.-M. \ Niquet ,\ title title Hole-Spin Driving by Strain-Induced Spin-Orbit Interactions ,\ https://doi.org/10.1103/physrevlett.131.097002 journal journal Physical Review ...

    2023 doi

  63. [71]

    Balakrishnan \ and\ author R

    author author S. Balakrishnan \ and\ author R. Sankaranarayanan ,\ title title Measures of operator entanglement of two-qubit gates ,\ https://doi.org/10.1103/physreva.83.062320 journal journal Physical Review A \ volume 83 ,\ pages 062320 ( year 2011 ) NoStop

    2011 doi

  64. [72]

    Jonnadula , author P

    author author B. Jonnadula , author P. Mandayam , author K. Życzkowski ,\ and\ author A. Lakshminarayan ,\ title title Entanglement measures of bipartite quantum gates and their thermalization under arbitrary interaction strength ,\ https://doi.org/10.1103/physrevresearch.2.04...

    2020 doi

  65. [73]

    author author F. N. M. \ Froning , author M. J. \ Rančić , author B. Hetényi , author S. Bosco , author M. K. \ Rehmann , author A. Li , author E. P. A. M. \ Bakkers , author F. A. \ Zwanenburg , author D. Loss , author D. M. \ Zumbühl ,\ and\ author F. R. \ Braakman ,\ title ...

    2021 doi

  66. [74]

    Costa , author K

    author author D. Costa , author K. Hudson , author P. Del Vecchio , author L. E. A. \ Stehouwer , author A. Tosato , author D. D. \ Esposti , author M. Lodari , author S. Bosco ,\ and\ author G. Scappucci ,\ @noop title Buried unstrained Ge channels: a lattice-matched platform...

    2025 arXiv

  67. [75]

    Mauro , author M

    author author L. Mauro , author M. J. \ Rodriguez , author E. A. \ Rodriguez-Mena ,\ and\ author Y.-M. \ Niquet ,\ title title Hole spin qubits in unstrained Germanium layers ,\ https://arxiv.org/abs/2506.04977 arXiv:2506.04977 ( year 2025 ) NoStop

    2025 arXiv

  68. [76]

    Ban , author X

    author author Y. Ban , author X. Chen ,\ and\ author G. Platero ,\ title title Fast long-range charge transfer in quantum dot arrays ,\ https://doi.org/10.1088/1361-6528/aae0ce journal journal Nanotechnology \ volume 29 ,\ pages 505201 ( year 2018 ) NoStop

    2018 doi

  69. [77]

    Ban , author X

    author author Y. Ban , author X. Chen , author S. Kohler ,\ and\ author G. Platero ,\ title title Spin entangled state transfer in quantum dot arrays: Coherent adiabatic and speed‐up protocols ,\ https://doi.org/10.1002/qute.201900048 journal journal Advanced Quantum Technolog...

    2019 doi

  70. [78]

    Fernández-Fernández , author Y

    author author D. Fernández-Fernández , author Y. Ban ,\ and\ author G. Platero ,\ title title Quantum Control of Hole Spin Qubits in Double Quantum Dots ,\ https://doi.org/10.1103/physrevapplied.18.054090 journal journal Physical Review Applied \ volume 18 ,\ pages 054090 ( ye...

    2022 doi

  71. [79]

    author author C. V. \ Meinersen , author S. Bosco ,\ and\ author M. Rimbach-Russ ,\ @noop title Quantum geometric protocols for fast high-fidelity adiabatic state transfer ( year 2024 ),\ https://arxiv.org/abs/2409.03084 arXiv:2409.03084 NoStop

    2024

  72. [80]

    author author C. V. \ Meinersen , author D. Fernandez-Fernandez , author G. Platero ,\ and\ author M. Rimbach-Russ ,\ @noop title Unifying adiabatic state-transfer protocols with ( , ) -hypergeometries ( year 2025 ),\ https://arxiv.org/abs/2504.08031 arXiv:2504.08031 NoStop

    2025 arXiv

  73. [81]

    Chen , author A

    author author X. Chen , author A. Ruschhaupt , author S. Schmidt , author A. del Campo , author D. Guéry-Odelin ,\ and\ author J. G. \ Muga ,\ title title Fast Optimal Frictionless Atom Cooling in Harmonic Traps: Shortcut to Adiabaticity ,\ https://doi.org/10.1103/physrevlett....

    2010 doi

  74. [82]

    Guéry-Odelin , author A

    author author D. Guéry-Odelin , author A. Ruschhaupt , author A. Kiely , author E. Torrontegui , author S. Martínez-Garaot ,\ and\ author J. Muga ,\ title title Shortcuts to adiabaticity: Concepts, methods, and applications ,\ https://doi.org/10.1103/revmodphys.91.045001 journ...

    2019 doi

  75. [83]

    Porotti , author D

    author author R. Porotti , author D. Tamascelli , author M. Restelli ,\ and\ author E. Prati ,\ title title Coherent transport of quantum states by deep reinforcement learning ,\ https://doi.org/10.1038/s42005-019-0169-x journal journal Communications Physics \ volume 2 ,\ pag...

    2019 doi

  76. [84]

    Ding , author Y

    author author Y. Ding , author Y. Ban , author J. D. \ Martín-Guerrero , author E. Solano , author J. Casanova ,\ and\ author X. Chen ,\ title title Breaking adiabatic quantum control with deep learning ,\ https://doi.org/10.1103/physreva.103.l040401 journal journal Physical R...

    2021 doi

  77. [85]

    Harrison \ and\ author A

    author author P. Harrison \ and\ author A. Valavanis ,\ https://doi.org/10.1002/9781118923337 title Quantum Wells, Wires and Dots: Theoretical and Computational Physics of Semiconductor Nanostructures \ ( publisher Wiley ,\ year 2016 ) NoStop

    2016 doi

  78. [86]

    author author D. H. \ Gebremedhin \ and\ author C. A. \ Weatherford ,\ title title Calculations for the one-dimensional soft Coulomb problem and the hard Coulomb limit ,\ https://doi.org/10.1103/physreve.89.053319 journal journal Physical Review E \ volume 89 ,\ pages 053319 (...

    2014 doi

  79. [87]

    Iñarrea , author V

    author author M. Iñarrea , author V. Lanchares , author J. F. \ Palacián , author A. I. \ Pascual , author J. P. \ Salas ,\ and\ author P. Yanguas ,\ title title Effects of a soft-core coulomb potential on the dynamics of a hydrogen atom near a metal surface ,\ https://doi.org...

    2018 doi

  80. [88]

    author author T. D. \ Truong , author H. H. \ Nguyen , author H. B. \ Le , author D. H. \ Dung , author H.-M. \ Tran , author N. D. \ Vy , author T. D. \ Anh-Tai ,\ and\ author V. N. \ Pham ,\ title title Soft parameters in Coulomb potential of noble atoms for nonsequential do...

    2022

  81. [89]

    Bravyi , author D

    author author S. Bravyi , author D. P. \ DiVincenzo ,\ and\ author D. Loss ,\ title title Schrieffer-Wolff transformation for quantum many-body systems ,\ https://doi.org/10.1016/j.aop.2011.06.004 journal journal Annals of Physics \ volume 326 ,\ pages 2793 ( year 2011 ) NoStop

    2011 doi

  82. [90]

    author author S. G. J. \ Philips , author M. T. \ Mądzik , author S. V. \ Amitonov , author S. L. \ de Snoo , author M. Russ , author N. Kalhor , author C. Volk , author W. I. L. \ Lawrie , author D. Brousse , author L. Tryputen , author B. P. \ Wuetz , author A. Sammak , auth...

    2022 doi

  83. [91]

    author author F. K. \ Unseld , author B. Undseth , author E. Raymenants , author Y. Matsumoto , author S. L. \ de Snoo , author S. Karwal , author O. Pietx-Casas , author A. S. \ Ivlev , author M. Meyer , author A. Sammak , author M. Veldhorst , author G. Scappucci ,\ and\ aut...

    2025 doi

  84. [92]

    author author C. J. \ Wood , author J. D. \ Biamonte ,\ and\ author D. G. \ Cory ,\ title title Tensor networks and graphical calculus for open quantum systems ,\ https://doi.org/10.48550/ARXIV.1111.6950 journal journal Quant. Inf. Comp. \ volume 15 ,\ pages 0579 ( year 2015 ) NoStop

    2015 doi arXiv

  85. [93]

    Hantzko , author L

    author author L. Hantzko , author L. Binkowski ,\ and\ author S. Gupta ,\ title title Fast generation of Pauli transfer matrices utilizing tensor product structure ,\ https://doi.org/10.1088/1402-4896/ade8b3 journal journal Physica Scripta \ volume 100 ,\ pages 075125 ( year 2...

    2025 doi

  86. [94]

    Xiang , author D

    author author Y. Xiang , author D. Sun , author W. Fan ,\ and\ author X. Gong ,\ title title Generalized simulated annealing algorithm and its application to the Thomson model ,\ https://doi.org/10.1016/s0375-9601(97)00474-x journal journal Physics Letters A \ volume 233 ,\ pa...

    1997 doi

  87. [95]

    author author T. J. \ Green , author J. Sastrawan , author H. Uys ,\ and\ author M. J. \ Biercuk ,\ title title Arbitrary quantum control of qubits in the presence of universal noise ,\ https://doi.org/10.1088/1367-2630/15/9/095004 journal journal New Journal of Physics \ volu...

    2013 doi

  88. [96]

    Cerfontaine , author T

    author author P. Cerfontaine , author T. Hangleiter ,\ and\ author H. Bluhm ,\ title title Filter Functions for Quantum Processes under Correlated Noise ,\ https://doi.org/10.1103/physrevlett.127.170403 journal journal Physical Review Letters \ volume 127 ,\ pages 170403 ( yea...

    2021 doi

  89. [97]

    Hansen , author A

    author author I. Hansen , author A. E. \ Seedhouse , author A. Saraiva , author A. S. \ Dzurak ,\ and\ author C. H. \ Yang ,\ title title Accessing the full capabilities of filter functions: Tool for detailed noise and quantum control susceptibility analysis ,\ https://doi.org...

    2023 doi

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