A no-signalling-based lifting of commitment techniques yields the first single-shot loss-tolerant QPV protocol with exponential security decay in the commitment threshold k and 3.7% noise robustness.
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Physical Review A33(5), 2913–2927 (1986)
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Protocol learns k-local Lindbladians to ε accuracy with Õ(n^{2k}/ε²) samples and projects to valid generators; improves to log n under sparsity assumptions.
W-state graphs are precisely the matching-covered graphs with specific half-edge colorings whose 3-connected components are W-cones, enabling efficient recognition and ruling out simple graphs.
Experimental observation of OAM non-conservation in Type-I SPDC attributed to spatial walk-off, demonstrated with a sensitive two-photon OAM detector and approximation-free theory.
Presents an optimized segmented surface Paul trap design achieving 5 kHz motional coupling between an antimatter H2- ion and a Be+ ion at 35 μm separation using 4 MHz axial frequencies and ~20 V static voltages.
Direct differentiation of the local energy at fixed samples yields an unbiased low-variance estimator for the variational Monte Carlo phase force in complex neural quantum states, with an adaptive mixture extending it to coupled networks and improving results on flux ladders, chiral chains, and frac
Torsion of a space curve induces a Wilczek-Zee-type gauge connection in the degenerate transverse subspace of a thin-layer quantized quantum waveguide, yielding oppositely shifted parabolic dispersions and integrated-torsion holonomy.
SAFE ma-QAOA achieves 64.3% fewer active parameters and 94.5% lower estimated QPU workload via surrogate pre-training and parameter distillation on Sherrington-Kirkpatrick, 2D spin glass, and Max-Cut instances.
Endpoint Kirkwood-Dirac or Margenau-Hill quasistatistics of work retain sensitivity to initial coherence under imperfect shortcuts, exposing linear signatures of control errors where population probabilities show only quadratic changes.
A randomized linear-time phase-folding algorithm using constant-width bitstring abstraction optimizes T-count in quantum circuits orders of magnitude faster than prior tools while achieving comparable reductions.
Geometric curvature of a metric-induced connection and non-trivial holonomies around non-contractible loops obstruct global Hermitianization of quasi-Hermitian quantum systems.
A structure-aware transformer trained on 3-14 qubit systems predicts Trotter orderings for 16-20 qubit 1D Heisenberg Hamiltonians with a mean fidelity gap of 0.00115 to the best of 24 candidates.
QuIC provides a training-free quantum graph embedding proven permutation-invariant and injective for labeled graphs under an irrational-angle condition in the ideal case, with empirical separation shown on noisy hardware for hard graph families including CFI instances.
PEAC extracts parameters from amplitude collapse in correlated matter-wave interferometers, yielding lower bias than conventional methods for perfectly correlated signals.
Steep expulsive potentials in 1D and 2D Schrödinger equations support continuous spectra of normalizable bound states, including even/odd states in 1D and vortex states in 2D.
Matching bounds for zero-error list decoding of pure-state CQ channels coincide under PSD overlap matrices, but the sphere-packing rate may not be achievable even for arbitrarily large fixed list sizes.
Coupled dissipative time crystals show chaotic synchronization with positive Lyapunov exponents and high Pearson correlations in the classical limit, plus analogous staggered-to-uniform crossovers and GUE statistics in quantum trajectories.
Co-optimization of flexible Iceberg error-detection gadgets with QAOA via tree search improves success probability and post-selection on Quantinuum H2-1 hardware up to 34 algorithmic qubits.
A virtual protocol based on universal source compression enables asymptotically tight finite-size security proofs for permutation-symmetrizable QKD by reducing the problem to conditional Rényi entropy estimation.
The weakly dissipative 1D Fermi gas exhibits algebraic density decay for annihilation and coagulation reactions and a mean-field directed percolation absorbing-state phase transition, extending previous lattice results to continuous space.
In the trapped unitary Fermi gas an odd particle number produces an edge-localized quasiparticle whose energy contribution scales as Q to the power 1/9.
Introduces Λ-lr-QAOA and piecewise-ramp QAOA that promote penalty schedules to variational parameters and use a feasibility-driven loss on budget-constrained MWIS satellite planning instances.
A design framework that converts an eight-to-three CCZ distillation protocol into a joint-measurement surface-code layout using smaller patches, claimed to cut spatial cost versus Gidney-Fowler while preserving leading-order error suppression and single-fault detection.
Adversarially encoded measurement deviations as small as 0.23% can produce false certification of high-dimensional entanglement in provably separable systems, demonstrated experimentally with classical photonic states up to 61 dimensions.
citing papers explorer
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Resource Management in Heterogeneous Quantum Repeater Networks
Proposes a heterogeneous quantum repeater network architecture using recursive designs and RuleSets with a new bridging building block, but states that full-scale resource trade-off analysis remains future work.
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Which Superconducting Qubit Model is Good Enough? From Effective Two-Level to Circuit-Based Hamiltonians for Pulse-Level Simulation
Benchmark comparison finds the three-mode Duffing model tracks the circuit-based transmon reference more closely than the effective two-level model for spectra and two-qubit terms, while driven dynamics show multilevel effects absent from the effective model.
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X-ray and extreme-ultraviolet spectra from collisions of Ar$^{18+}$ and O$^{8+}$ ions with neutrals
Experimental K-shell x-ray and EUV spectra from charge exchange collisions of Ar18+ and O8+ ions with neutrals in an EBIT, compared to multichannel Landau-Zener models.
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GeneCS: Synthesizing Resource-Efficient Code Surgery for Arbitrary Quantum Stabilizer Codes
GeneCS compiler reduces ancillary qubits and checks by over 85% on average for single- and cross-code logical operations on stabilizer codes while preserving error rates and scaling to over 10,000 qubits.
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Second-order moment equivalence of twisted Gaussian Schell model beams and orbital angular momentum eigenmodes
Covariance matrices of coherent OAM eigenmodes and TGSM beams share identical structure and zero/nonzero pattern, enabling second-order equivalence under ABCD transformations for arbitrary radial profiles.
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Tolerating Device Failure in Distributed Quantum Computing
Distributed toric and hyperbolic Floquet codes maintain logical error suppression when entire nodes fail at low rates, with the toric code outperforming a monolithic device below 0.05% physical error rate for node failure probability p/100.
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State-Specific Kinetic Modeling of Atomic H for H$_2$/ He Entry Flows
An 11-species model with state-specific atomic H kinetics reproduces experimental radiance profiles from H2/He shocks and improves ionization and radiation predictions compared to alternate models.
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Coupled Arnol'd cat maps on circulant graphs
Coupled Arnold cat maps on circulant graphs exhibit constant Kolmogorov-Sinai entropy independent of connectivity due to translational symmetry.
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Quantum average correlations and complementarity relations via metric-adjusted skew information
Averaging quantum correlations over mutually unbiased bases, all orthonormal bases, operator bases, and unitary twirling via metric-adjusted skew information yields one intrinsic closed expression, enabling complementarity relations among wave-particle features, entropy, and average correlation.
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Physics-Informed Neural Networks for Maximizing Quantum Fisher Information in Time-Dependent Many-Body Systems
PINNs combined with Magnus expansion learn scheduling functions and adiabatic gauge potentials that yield higher normalized QFI than Euler-Lagrange baselines in nearest-neighbor, dipolar, and trapped-ion spin models up to six qubits.
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Propagation, generation, and utilization of topologically trivial magnetic solitons in magnetic nanowires
Approximate analytical solutions for 1D topologically trivial magnetic solitons in nanowires are presented with numerical validation, nonlinear interface behavior, pulse-based generation, and application to controlled domain wall driving.
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Boson correlations are spurious for classical states
Boson correlations for states with well-behaved Glauber-Sudarshan P-representations are spurious statistical correlations due to Simpson's paradox from symmetry-breaking in ensemble averages over varying geometries.
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Arqon: A suite of control applications enabling a reliable quantum network
Arqon delivers reliable quantum network service via admission control and scheduling that satisfies defined reliability requirements for accepted demands in static topologies, with O(k^3) and O(N^3) complexity.
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Nuclear forward scattering of Bessel beams in $^{229}$Th:CaF$_2$
Bessel beam nuclear forward scattering in 229Th:CaF2 can determine the relative distribution of quantization axis directions inside the crystal.
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Charging Quantum Batteries via Dissipative Quenches
Dissipative dynamics activate finite ergotropy from thermal quantum spin chains, with collective effects creating temperature- and size-dependent steady-state passivity via dark subspaces, while dephasing suppresses extraction.
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Pair distribution functions of a superfluid spin-1/2 Fermi gas with contact interactions in the linearized time-dependent BCS theory
Linearized time-dependent BCS theory implemented via the fluctuation-dissipation theorem is the minimal mean-field framework for pair distribution functions in a homogeneous unpolarized superfluid Fermi gas, capturing phonon effects and short-distance corrections missed by static BCS.
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Rci-Q: an improved QED correction model for the GRASP2018 package
Rci-Q extends GRASP2018 with new fitting prefactors for the Flambaum-Ginges radiative potential, plus finite-nucleus self-energy corrections and the Wichmann-Kroll vacuum polarization term.
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Fault-tolerant interfaces for modular quantum computing on diverse qubit platforms
Comparative analysis of fault-tolerant interfaces for modular quantum computing using surface codes, including novel grow-and-distil protocols, to determine optimal strategies across hardware parameters for low logical error rates.
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External quantum fluctuations select measurement contexts
External quantum fluctuations from the apparatus initial state select measurement contexts in generalized measurements, allowing different outcomes to represent different contexts.
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Managing Classical Processing Requirements for Quantum Error Correction
A two-level decoder scheduling framework reduces classical processing requirements for quantum error correction by 10-40% on fault-tolerant benchmarks by managing bursty workloads as shared resources.
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Annealing-based approach to solving partial differential equations
PDEs are solved by formulating discretized systems as generalized eigenvalue problems and using annealing to optimize the generalized Rayleigh quotient iteratively for eigenvectors.
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Modelling Dynamic Interactions between Relevance Dimensions
Applies quantum theory to model incompatibility and interference between relevance dimensions via a cognitive analogue of a quantum physics experiment in a user study.
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Recursive QLSTM with Dynamic Variational Quantum Circuit Adaptation
The paper introduces Recursive QLSTM via metacore recursion, numerically tests variants on sequence lengths, and offers theoretical arguments for better temporal propagation.
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Rothe's Method for Quantum Dynamics in Atoms and Molecules with Gaussian Wavepackets
Rothe's method stabilizes Gaussian wavepacket propagation for quantum dynamics, yielding grid-comparable accuracy for electronic and rovibrational processes including high-harmonic generation using remarkably few functions.
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Why dimensional analysis works: general classification of self-similarity based on scale-invariance
A scale-invariance formulation explains why dimensional analysis succeeds and partitions self-similar solutions into three categories based on whether unit-induced and parameter-induced scale functions coincide.
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Discrete and Continuous Wigner Functions in Open Quantum Systems: Non-Markovian and Thermodynamic Effects
Negative quantum states from discrete Wigner functions show resilience advantages over Bell states under non-Markovian dynamics, are protected via weak measurements, and are realized on IBM superconducting hardware.
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Towards a quantum decision tree in a laser pumped four-level system
Proposes a scalable framework for quantum decision trees in a laser-driven four-level diamond atomic system using Lie-algebraic analysis and amplitude-varied pulses with identical temporal profiles for controlled population transfer.
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Software Between Quantum and Machine Learning -- And Down to Pulses
Introduces a JAX-based framework for pulse-level QML with composable ansatze, end-to-end pulse optimization, and Fourier-analytic diagnostics.
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Spectral Bounds for Tensors Derived from Trace Functionals and Wasserstein Distance in Tensor Spaces
Defines trace-based metric and Bures-Wasserstein distance for PSD tensors, derives spectral eigenvalue bounds, and analyzes dependence on PSD condition with examples and complexity.
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The Dirac oscillator in the curved spacetime of a cloud of strings
The Dirac oscillator in cloud-of-strings spacetime admits exact bound states whose energy spectrum is quantized by radial number n and angular number κ and depends explicitly on oscillator frequency ω, string-cloud parameter a, and curvature-modified effective mass m_eff.
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Characterizing quantum correlations and quantum teleportation in $gg \to t\bar{t}$ and $q\bar{q} \to t\bar{t}$ processes under noisy channels
Quantum teleportation using noisy top-quark pairs stays above the classical fidelity threshold of 2/3.
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Entanglement is Half the Story: Post-Selection vs. Partial Traces
A hybrid tensor network framework interpolates between classical and quantum models via controllable post-selection, with a trainable hyperparameter that complements bond dimension to enhance quantum machine learning.
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Efficient Complex-Valued State Preparation on Bucket Brigade QRAM
Precomputes rotation angles classically and adds a magnitude-then-phase procedure to enable complex-valued state preparation on BBQRAM at unchanged O(log²(MN)) query cost with no reversible arithmetic on the QPU.
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Quantum average correlation based on average coherence
A new average correlation for bipartite quantum systems is defined as the difference between global and local skew information; it satisfies non-negativity, contractivity under local channels, and local unitary invariance, with equivalence proven between MUB and Haar-measure definitions plus a wave-
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Electric field dependent g factors of RaOCH$_3$ molecule
A new method calculates electric-field-dependent g-factors for the first excited rotational level of RaOCH3 and identifies K-doublet levels with small g-factor differences.
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Gate Stack Engineering for High-Mobility and Low-Noise SiMOS Quantum Devices
Raising the atomic-layer deposition temperature of Al2O3 and using HfO2 or poly-Si gates in SiMOS devices correlates with higher mobility and lower charge noise, yielding more stable quantum dots.
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Convolutional neural network based decoders for surface codes
Convolutional neural network decoders achieve good performance on surface code error correction and adapt across noise models, with explainable AI used to inspect their decisions.
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Self-Modulating Quantum Fast-Weight Programmers for Efficient Adaptive Sequential Learning
Self-Modulating QFWP adds adaptive modulation to quantum fast-weight updates and memory to improve stability and performance on sequential learning tasks.
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Bell's theorem: why probability factorisation fails
Bell-type correlations are reinterpreted as sequential single-spin auto-correlations under counterfactual equivalence, explaining non-locality via state-altering measurements on undefined quantities.
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Elastic electron scattering from Zn, Cd, and Hg
Theoretical differential, integrated, and momentum transfer cross sections for elastic electron scattering by Zn, Cd, and Hg via self-consistent method with semi-empirical polarization cut-off radius.
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A Comprehensive Analysis of Accuracy and Robustness in Quantum Neural Networks
QCNN, QRNN, and QViT perform well on low-feature data but degrade on high-feature datasets, with QViT most robust to quantum noise and classical-style models better against adversarial noise.
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Warring Contextualities -- Provably Classical vs Provably Nonclassical
Kochen-Specker contextuality generalizes nonclassicality while Spekkens' noncontextuality generalizes classicality, reconciling the two as successive stages in a hierarchy of classicality.
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Quantum Protocols for Time Synchronisation and Distribution: A Critical Assessment
Quantum time synchronization protocols do not provide a near-term replacement for classical methods in most applications because time transfer precision remains the limiting factor, though they add value for physical-layer security.
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Phase-space modelling of solid-state plasmas
Phase-space kinetic modeling with distribution function f(r,p,t) is applied to solid-state plasmas in nano-objects, adding quantum, spin, relativistic and dissipative features for linear and nonlinear response examples.
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Democratising Optical Orbital Angular Momentum: a Set of Cost-Effective Tools
Cost-effective fork diffraction gratings printed on slide film enable simple laser-pointer generation of orbital angular momentum vortex beams for classroom use.
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Spin asymmetry for the elastic scattering of polarized electrons from Zn, Cd, and Hg
Extends prior method to calculate Sherman functions for elastic electron scattering from Zn, Cd, and Hg with results matching experimental and theoretical benchmarks.
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Quantum Complexity and New Directions in Nuclear Physics and High-Energy Physics Phenomenology
A review of how quantum information science is expected to provide new tools and insights for nuclear and high-energy physics phenomenology and quantum simulations.
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Fundamentals and Applications of Hybrid Electro- and Opto-mechanical system coupled to Superconducting Qubit: A Short Review
A review surveying coupling mechanisms in superconducting qubit-mechanical resonator hybrids and their extension to optomechanical architectures for quantum sensing applications.
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Ultracold atomic lattice systems for simulating topological phases: A review
Review surveying experimental realizations of topological phases across optical lattices, synthetic lattices, Floquet-engineered systems, and optical tweezer arrays.
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Over forty years of research towards the understanding of Quantum Brownian Motion -- the contributions of A. O. Caldeira
The paper summarizes A. O. Caldeira's foundational work on quantum Brownian motion, including dissipation in tunneling, alternative models, and links to decoherence and quantum thermodynamics.