The Entanglement Content of Quantum Measurement BasesBell-state measurements are essential ingredients in many protocols for quantum information processing, ranging from quantum teleportation and dense coding to entanglement distribution in quantum…Jef Pauwels, Otfried Gühne·Aug 21, 2026SaveLearn
A Bayesian formulation of hybrid quantum-classical dynamicsWe develop a Bayesian formulation of diffusive quantum-classical dynamics by treating the wave function and classical variables as components of an ordinary stochastic process. The joint probability…Hilbert Kappen·Aug 21, 2026SaveLearn
Entangling Power Dynamics: Ergodicity and MixingWe study quantum dynamics through the lens of entanglement generation and characterize the underlying unitary evolution by the distinct signatures it imprints on the time-dependent entangling power.…Rahul V, Ranjan Modak, Shaon Sahoo et al.·Aug 21, 2026SaveLearn
Quantum thermodynamics and semidefinite optimization: Boltzmann, Fermi-Dirac, and Bose-Einstein frameworksHere we argue how quantum thermodynamics offers a unifying interpretation for a wide class of semidefinite programs (SDPs) that arise in quantum information. Three SDP variable constraints, namely…Michele Minervini, Nana Liu, Dhrumil Patel et al.·Aug 21, 2026SaveLearn
Quantifying Entangling Power of Controlled Unitary GatesApplying controlled unitary gates to generate entanglement between qubits is a routine task in both quantum communication and computation. The existing tools for predicting how much entanglement a…Ankur Haldar, Pankaj Agrawal, Prasenjit Deb·Aug 21, 2026SaveLearn
Symmetry Constrained Quantum Error Mitigation for the Schwinger ModelQuantum error mitigation (QEM) is at the very heart of near-term quantum simulations and lattice gauge theories are no exceptions, rather their physical symmetries provide natural consistency checks…Alexander Tomlinson, Graham Van Goffrier, Bipasha Chakraborty et al.·Aug 21, 2026SaveLearn
Minimization of micromotion for nanoparticles in a Paul trapWhen a charged particle in a Paul trap is displaced from the node of the AC trapping field, excess micromotion arises as an undesired effect. Excess micromotion heats the particle, limits the…Jamie Morley, Jean Paul Louys Sansó, Dmitry Bykov et al.·Aug 21, 2026SaveLearn
Degeneracy beyond the parity-symmetry protection in the Lipkin-Meshkov-Glick modelDegeneracy patterns in quantum mechanics stem from the system symmetries. In particular, the broken-symmetry phase in the well-known Lipkin-Meshkov-Glick (LMG) model is composed of doubly-degenerate…Jamil Khalouf-Rivera, Miguel Carvajal, Francisco Pérez-Bernal·Aug 21, 2026SaveLearn
When More Becomes Less: Topology-Reversed Three-Qubit Gate Performance on IBM Quantum ProcessorsThe exact Toffoli gate admits a six-CX decomposition, denoted by CCX6, that is optimal under unrestricted two-qubit connectivity. On a linear three-qubit topology, however, CCX6 contains 4…Simona K. Grigorova, Stancho S. Stanchev, Nikolay V. Vitanov·Aug 21, 2026SaveLearn
A Classification of Translation-Invariant Quantum Codes in Any DimensionQuantum error-correcting codes with two-dimensional translation invariance are known to be equivalent to copies of the two-dimensional toric code. Such a simple classification is not possible for…Andrew Li, Dominic J. Williamson·Aug 21, 2026SaveLearn
Tools for Reducing Service Time in Near-Term Quantum NetworksArchitectures have been proposed to control entanglement generation in multi-user quantum networks. To allow time for local operations and classical communication at end nodes, these architectures…Jake Smith, Thomas R. Beauchamp, Scarlett Gauthier et al.·Aug 21, 2026SaveLearn
Anisotropic dynamical reconstruction of quantum geometry in quenched Chern insulatorsUnder unitary dynamics, the Chern number of an evolving quantum state remains conserved even when a quench drives the Hamiltonian across a topological phase transition. In sharp contrast, we reveal…Nan Li, Zhiyong Liu, Zhaoxin Liang et al.·Aug 21, 2026SaveLearn
Characterizing Multimode Effects in a Guided Matterwave GyroscopeWe theoretically investigate the performance of a compact matterwave vortex gyroscope formed by a two-component Bose-Einstein condensate in a toroidal potential. Unlike conventional atomic gyroscopes…Jessica K. Eastman, Ellen Zheng, Stuart S. Szigeti et al.·Aug 21, 2026SaveLearn
Spin models with critical ground space degeneracy from Lie algebra relationsWe introduce an SO(3)-symmetric spin model derived from the algebraic structure of so(3): It is obtained as the nearest-neighbor parent Hamiltonian of a Matrix Product State…Andras Molnar, Efekan Kökcü, Norbert Schuch et al.·Aug 21, 2026SaveLearn
Non-Hermitian sensing via end-to-end Green's functionsSensing hinges on two key attributes: high sensitivity and resilience to noise. Here, we present a scheme that unites these features within a single framework. By harnessing the exponential…Hui-Qiang Liang, Yu-Shi Cheng, Guo-Fu Xu·Aug 21, 2026SaveLearn
Revealing Physical Redundancy in the Two-dimensional Fermi-Hubbard Model via Transferable Observable ReconstructionThe Fermi-Hubbard model provides a paradigmatic setting for studying strongly correlated quantum matter, where different observables are commonly used to probe charge, interaction, and spin…Ao-Ning Wang, Min-Quan He, Z. D. Wang·Aug 21, 2026SaveLearn
Coherence-Based Identification of Carbon-Based Spin Qubits in Hexagonal Boron Nitride from First PrinciplesCarbon-related defects in hexagonal boron nitride are promising room-temperature single-spin qubits and quantum sensors, but their atomic structures remain largely unidentified. Here we show, using…Hyeonsu Kim, Jaewook Lee, Huijin Park et al.·Aug 21, 2026SaveLearn
Quantum phase estimation for nondestructive monitoring and Wigner tomography of bosonic fieldsQuantum phase estimation is usually introduced as an algorithmic primitive for extracting eigenphases of unitary operators. Here we show that, when implemented through a dispersive light-matter…Lucas R. S. Santos, Ciro M. Diniz, Daniel Z. Rossatto et al.·Aug 21, 2026SaveLearn
The four-dimensional Chamon codeFracton models have attracted considerable interest as candidates for quantum memories because of their unconventional ground-state degeneracy (GSD) and restricted-mobility excitations. The…Zhipeng Liang, Xuan Wang·Aug 21, 2026SaveLearn
Hybrid dynamical decoupling and coherent driving for high-fidelity nuclear-spin control in diamondNitrogen-vacancy (NV) centers in diamond provide room-temperature electron-nuclear spin registers for quantum sensing and quantum information processing, with surrounding 13C nuclear spins serving as…Jiwon Jeon, Donghun Jung, Eunsang Lee et al.·Aug 21, 2026SaveLearn
Activate genuine nonlocality from distinguishable sets in tripartite systemsA set of orthogonal quantum states in multipartite systems is of genuine nonlocality if it is locally indistinguishable in every bipartition. If it is locally reducible when the parties are…Hui-Juan Zuo, Ying-Ying Lu, Shao-Ming Fei·Aug 21, 2026SaveLearn
Restoring heat and particle flow in strongly coupled non-equilibrium devicesUnder non-equilibrium conditions, energy/particle currents flow through a quantum system coupled to multiple baths. Although the fluxes increase in the weak coupling regime as the coupling…Noa Ludwin, Ohad Cremerman, Milan Šindelka et al.·Aug 21, 2026SaveLearn
Difference-Set Weyl Channels: Exact Capacity, Optimizer Bifurcation, and Scalable Entanglement SeparationIn odd local dimension D, complete Wigner positivity yields stochastic phase-space dynamics on Wigner-nonnegative states but does not control signed inputs, entanglement across channel uses, or…Se-Wan Ji·Aug 21, 2026SaveLearn
Quantum Zeno and Anti-Zeno Responses: Universal Spectral Criterion for Measurement-Induced DecayWe develop a general framework for characterizing the response of an evolving quantum system to repetitive quantum measurements. Modeling each evolution-measurement cycle as a quantum channel induced…Yu-Xiang Chen, Yuan-De Jin, Wen-Long Ma·Aug 21, 2026SaveLearn
Continuous-angle logical rotations in the Steane codeWe experimentally demonstrate continuous-angle logical Z rotations in the [[7,1,3]] Steane code on the IonQ Forte trapped-ion processor. A round of the protocol applies a transversal physical Z…Eric Huang, Daiwei Zhu, Matteo Ippoliti et al.·Aug 21, 2026SaveLearn