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Hamiltonian-induced error-channel control for Lyapunov quantum state transfer
Intrinsic Hamiltonian of Mean Force and Strong-Coupling Quantum Thermodynamics
Quantum architecture generation via predictor-guided diffusion models
Jiawen Dai and coauthors published a method using predictor-guided diffusion models to generate parametrized quantum circuit architectures for variational quantum algorithms in Physical Review A.
Spin-polarized transport tomography of a quantum-dot spin qubit via ferromagnetic leads
Three physicists described a method to recover the full quantum state of an electron spin in a dot by measuring currents from magnetic contacts.
Learning hidden structures in open quantum dynamics
Three physicists published a paper presenting a data-driven technique to extract concealed invariants from the evolution of open quantum systems under limited observations.
Experimental Tomography of Quantum Many-Body Hamiltonians in Solids via Thermalization
Researchers reported experimental reconstruction of unknown quantum many-body Hamiltonians in solids by analyzing thermalization dynamics.
Quantum Sensing Using Geometrical Phase in Qubit-Oscillator Systems
Nishchay Suri and coauthors published a protocol for quantum sensing in coupled qubit-oscillator systems that encodes signals in geometrical phase to surpass the standard quantum limit.
One-Positron Quantum Cyclotron
Myers and colleagues reported a device that traps one positron and manipulates its quantum states for high-precision magnetic moment measurement.
Phase-Space Microscopes for Quantum Gases: Imaging Conjugate Variables and Momentum-Weighted Densities
Linear Ensemble-Constrained Quantum Monte Carlo: From Dilute Fermi Gas to Flat-Band Ferromagnetism
Quantum state smoothing for tracking optical quantum dynamics and recovering purity and squeezing
npj Quantum Information published a paper on smoothing quantum states to follow dynamics in optical systems.
Enabling Deterministic Passive Quantum State Transfer with Giant Atoms
Researchers reported in PRX Quantum that tailored coupling of giant atoms to a waveguide enables deterministic state transfer above 99 percent fidelity without time-dependent control.
Complementarity in quantum and general information theories
Rolino, Perinotti and Tosini defined complementarity via value conflicts and established its match to observable incompatibility in quantum theory.
Eigenstate-thermalization-hypothesis-ansatz-motivated environmental-branch approach to open quantum systems
Wen-ge Wang published a method in Physical Review A for studying open quantum systems with a small central system coupled to an ETH-satisfying chaotic environment.
Hybrid quantum repeater chains with atom-based quantum processing units and quantum memory multiplexers
Shin Sun and coauthors published an analysis of hybrid quantum repeater chains using atom-based processing units and multiplexed quantum memories in Physical Review A.
High-Dimensional Quantum Key Distribution via Full Core-Mode Encoding over Deployed Multicore Fibers
G. H. dos Santos and coauthors reported experimental results for four-dimensional quantum key distribution with complete core-mode encoding on installed multicore fibers in PRX Quantum.
Fragile single-cone Dirac quantum walks in two dimensions
Beenakker, Sánchez Fernán and Tworzydło showed that two-dimensional single-cone Dirac quantum walks are unstable to perturbations.
Catalytic quantum thermodynamics beyond additivity and reduced-state monotones
Physicists Günhan, Pusuluk, Oikonomou and Bagci reported analysis of thermodynamic constraints in quantum catalysis in Physical Review A.
Continuous-time quantum control across an exponentially small bottleneck in a frustrated Ising ring model
Noise-robustness for delegated quantum computation in the circuit model
Anne Broadbent and Joshua Nevin published a study on noise robustness for verifiable delegated quantum computation in the circuit model.
Hybrid quantum-classical framework for Betti-number estimation with applications to topological data analysis
Robust quantum key distribution with imperfections in state preparation and characterization
Researchers published a paper in Physical Review A analyzing a quantum key distribution scheme that tolerates imperfections in state preparation and characterization.
Dynamical evolution of quantum scattering in ${\mathrm{Li}}^{+}+{\mathrm{H}}^{−}$ mutual neutralization from the meV/u to the keV/u regime
Researchers used a quantum molecular-orbital close-coupling method with ab initio potentials to calculate reaction mechanisms in Li+ + H- mutual neutralization from meV/u to keV/u energies.
Deterministic quantum states storage via dynamical control of subradiant states
Multirobust Control Pulses Designed by Iterative Quantum Kolmogorov-Arnold-Moser Algorithm
M. Harutyunyan and S. Guérin published a multirobust quantum control strategy in Physical Review Letters that suppresses multilevel leakage in qubits while providing robustness to control inhomogeneities.
Scalability bottlenecks in entanglement-based satellite quantum key distribution: downlink asymmetry, orbit dependence and finite-key effects
A paper analyzing limitations in satellite quantum key distribution with entangled photons was published in npj Quantum Information.
Programmable high-dimensional state synthesis through a 20-m multimode fiber via long-coherence atomic photons
A paper in npj Quantum Information reports generating programmable high-dimensional quantum states sent by coherent atomic photons across a 20 m multimode fiber.
Heisenberg-Limited Hamiltonian Learning Without Short-Time Control
Traceable quantum secret sharing
Bounding eigenstate overlap from Hamiltonian moments: Success-probability guarantees for quantum phase estimation
Lin and Izmaylov reported a calculable method for limits on quantum phase estimation success rates based on Hamiltonian moments in Physical Review A.
Quantum error correction in adversarial regimes
Rahul Arvind and coauthors published a Physical Review A paper showing standard quantum error correction corrects at most half the code distance under adversarial corruption and introducing quantum list decoding.
Towards noble gas quantum optical magnetometry using direct ultraviolet detection
Maldaner and Porat described in Phys. Rev. A a method to sense magnetic fields by monitoring noble gas spins with UV comb light, avoiding alkali mixtures.
Source temporal imperfections in measurement-device-independent quantum key distribution
Hu and coauthors examined in Physical Review A how timing deviations from photon sources affect two-photon interference in device-independent key distribution.
Probability distribution analysis of the cascaded variational quantum eigensolver
Researchers analyzed probability distributions for the cascaded variational quantum eigensolver that removes iterative quantum-classical communication in standard VQE.
Heisenberg scaling in optical magnetometry with measurement-induced correlations as a quantum resource
Engelhardt and coauthors showed that continuous collective measurements alone can generate many-body correlations for Heisenberg-limited precision in optical magnetometry.
Quantum-corrected Floquet dynamics: Bridging fully quantum and semiclassical regimes
Thermodynamic Uncertainty Relation with Quantum Feedback
$\mathrm{Λ}$-Enhanced Gray-Molasses Loading and EIT Cooling of Neutral Atoms in Nanophotonic Traps
Lucas Pache and coauthors published results in PRX Quantum showing cooling methods that raise atom capture rates and extend hold times in nanophotonic traps.