AtomTwin.jl is a physics-native Julia framework for simulating neutral-atom quantum processors, with a demonstration of logical Bell state preparation using four ytterbium-171 atoms in movable tweezers.
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QuTiP 5: The Quantum Toolbox in Python
19 Pith papers cite this work. Polarity classification is still indexing.
abstract
QuTiP, the Quantum Toolbox in Python, has been at the forefront of open-source quantum software for the past 13 years. It is used as a research, teaching, and industrial tool, and has been downloaded millions of times by users around the world. Here we introduce the latest developments in QuTiP v5, which are set to have a large impact on the future of QuTiP and enable it to be a modern, continuously developed and popular tool for another decade and more. We summarize the code design and fundamental data layer changes as well as efficiency improvements, new solvers, applications to quantum circuits with QuTiP-QIP, and new quantum control tools with QuTiP-QOC. Additional flexibility in the data layer underlying all ``quantum objects'' in QuTiP allows us to harness the power of state-of-the-art data formats and packages like JAX, CuPy, and more. We explain these new features with a series of both well-known and new examples. The code for these examples is available in a static form on GitHub and as continuously updated and documented notebooks in the qutip-tutorials package.
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QumVQD enables excited-state quantum chemistry calculations on bosonic qumode hardware by enforcing particle-number symmetry and using Hamiltonian fragmentation, achieving chemical accuracy on H2 and spectroscopic accuracy on vibrational modes with far fewer entangling gates than qubit equivalents.
Quantum reservoirs handle multivariate time series best with task-specific encodings that leverage non-classical effects.
A fluctuation-guided adaptive random compiler for Hamiltonian simulation dynamically adjusts term sampling probabilities according to state sensitivity to improve fidelity over fixed randomized methods.
Experimental demonstration of universal qudit control on a cavity oscillator via compiled Jaynes-Cummings gates with a transmon ancilla, reaching 96% mean post-selected process fidelity for qutrit gates.
A black-box machine learning technique trains continuously-coupled photonic waveguide arrays to implement target unitaries using limited single- and two-photon measurements without requiring detailed internal models.
Error-tolerant quantum state discrimination methods using CrossQSD, FitQSD, and a hybrid convex optimization framework are proposed, with a modified Naimark dilation for hardware-efficient quantum circuits.
A molecular-optomechanics framework predicts clear anti-Stokes SERS signatures of population transfer between coupled vibrational modes under two realistic pump-probe schemes.
Orthogonal FDM with rectangular pulses suppresses interference to enable high-fidelity simultaneous gates on multiple qubits via a single microwave line.
Proposes and models a single-shot conditional displacement gate between a trapped atom and traveling light pulse via cavity mediation, including loss effects for hybrid quantum information processing.
A bosonic code from superpositions of squeezed Fock states maintains orthogonality at all squeezing levels and achieves error correction scaling as exp(-7r) for single-photon loss and dephasing.
Time evolution of genuine multipartite negativity in the open Kitaev quantum spin liquid shows persistence in loopy subregions in Markovian regime and at higher temperatures in non-Markovian regime.
A parallel-in-time encoding turns quantum dynamical propagators into QUBO instances for direct benchmarking of quantum annealers against classical solvers on models from single-qubit rotations to PT-symmetric systems.
Experimental measurement of ultralow excited-state populations in an HBAR enables new constraints on high-frequency gravitational waves, dark matter, and wavefunction collapse models.
Non-local metasurfaces supporting BICs achieve β-factors exceeding 80% for quantum emitter coupling, enabling faster and amplified entanglement between remote qubits over multiple wavelengths.
Perfect displacement of superconducting resonators is achieved via fast-forward scaling of drive amplitude or detuning, enabling high-speed R_ZZ gates in Kerr-cat qubits.
Integrable Floquet time crystals realized in 1D quadratic lattice models from spin chains, with rigid DTC phase, phase diagram showing transitions to Floquet paramagnet, and exponentially diverging lifetime via finite-size scaling.
Jaynes-Cummings qubit-boson systems show superior nonlinear memory capacity and comparable Mackey-Glass forecasting performance when used as quantum reservoirs.
Geometric study of non-stabilizerness in few-qubit systems via trace distance to the stabilizer polytope, with state sampling, measure comparisons, an analytical expression, facet classification, and a concentration bound linking it to entanglement.
citing papers explorer
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AtomTwin.jl: a physics-native digital twin framework for neutral-atom quantum processors
AtomTwin.jl is a physics-native Julia framework for simulating neutral-atom quantum processors, with a demonstration of logical Bell state preparation using four ytterbium-171 atoms in movable tweezers.
-
Excited-State Quantum Chemistry on Qumode-Based Processors via Variational Quantum Deflation
QumVQD enables excited-state quantum chemistry calculations on bosonic qumode hardware by enforcing particle-number symmetry and using Hamiltonian fragmentation, achieving chemical accuracy on H2 and spectroscopic accuracy on vibrational modes with far fewer entangling gates than qubit equivalents.
-
Multivariate quantum reservoir computing with discrete and continuous variable systems
Quantum reservoirs handle multivariate time series best with task-specific encodings that leverage non-classical effects.
-
Fluctuation-guided adaptive random compiler for Hamiltonian simulation
A fluctuation-guided adaptive random compiler for Hamiltonian simulation dynamically adjusts term sampling probabilities according to state sensitivity to improve fidelity over fixed randomized methods.
-
Universal Jaynes-Cummings Control of an Oscillator
Experimental demonstration of universal qudit control on a cavity oscillator via compiled Jaynes-Cummings gates with a transmon ancilla, reaching 96% mean post-selected process fidelity for qutrit gates.
-
Training continuously-coupled reconfigurable photonic chips with quantum machine learning
A black-box machine learning technique trains continuously-coupled photonic waveguide arrays to implement target unitaries using limited single- and two-photon measurements without requiring detailed internal models.
-
Error-Tolerant Quantum State Discrimination: Optimization and Quantum Circuit Synthesis
Error-tolerant quantum state discrimination methods using CrossQSD, FitQSD, and a hybrid convex optimization framework are proposed, with a modified Naimark dilation for hardware-efficient quantum circuits.
-
Addressing intramolecular vibrational redistribution in a single molecule through pump and probe surface-enhanced vibrational spectroscopy
A molecular-optomechanics framework predicts clear anti-Stokes SERS signatures of population transfer between coupled vibrational modes under two realistic pump-probe schemes.
-
Orthogonal frequency-division multiplexing for simultaneous gate operations on multiple qubits via a shared control line
Orthogonal FDM with rectangular pulses suppresses interference to enable high-fidelity simultaneous gates on multiple qubits via a single microwave line.
-
Single-shot conditional displacement gate between a trapped atom and traveling light
Proposes and models a single-shot conditional displacement gate between a trapped atom and traveling light pulse via cavity mediation, including loss effects for hybrid quantum information processing.
-
Quantum Error Correction with Superpositions of Squeezed Fock States
A bosonic code from superpositions of squeezed Fock states maintains orthogonality at all squeezing levels and achieves error correction scaling as exp(-7r) for single-photon loss and dephasing.
-
Fate of entanglement in open quantum spin liquid: Time evolution of its genuine multipartite negativity upon sudden coupling to a dissipative bosonic environment
Time evolution of genuine multipartite negativity in the open Kitaev quantum spin liquid shows persistence in loopy subregions in Markovian regime and at higher temperatures in non-Markovian regime.
-
Quantum-inspired dynamical models on quantum and classical annealers
A parallel-in-time encoding turns quantum dynamical propagators into QUBO instances for direct benchmarking of quantum annealers against classical solvers on models from single-qubit rotations to PT-symmetric systems.
-
Ultracold Mechanical Quantum Sensor for Tests of New Physics
Experimental measurement of ultralow excited-state populations in an HBAR enables new constraints on high-frequency gravitational waves, dark matter, and wavefunction collapse models.
-
Long-range quantum emitter interactions mediated by a non-local metasurface: Application to qubit-qubit entanglement
Non-local metasurfaces supporting BICs achieve β-factors exceeding 80% for quantum emitter coupling, enabling faster and amplified entanglement between remote qubits over multiple wavelengths.
-
Perfect displacement of a superconducting resonator via fast-forward scaling and its application to high-speed $R_{ZZ}$ gates in Kerr-cat qubits
Perfect displacement of superconducting resonators is achieved via fast-forward scaling of drive amplitude or detuning, enabling high-speed R_ZZ gates in Kerr-cat qubits.
-
Integrable Floquet Time Crystals in One Dimension
Integrable Floquet time crystals realized in 1D quadratic lattice models from spin chains, with rigid DTC phase, phase diagram showing transitions to Floquet paramagnet, and exponentially diverging lifetime via finite-size scaling.
-
Quantum reservoir computing in Jaynes-Cummings models: Nonlinear memory and time-series prediction
Jaynes-Cummings qubit-boson systems show superior nonlinear memory capacity and comparable Mackey-Glass forecasting performance when used as quantum reservoirs.
-
A trace distance-based geometric analysis of the stabilizer polytope for few-qubit systems
Geometric study of non-stabilizerness in few-qubit systems via trace distance to the stabilizer polytope, with state sampling, measure comparisons, an analytical expression, facet classification, and a concentration bound linking it to entanglement.