Robust Quantum Key Distribution Arbitrarily Close to Local CorrelationsRecently, Wooltorton et al. [Phys. Rev. Lett. 132, 210802 (2024)] and Farkas [Phys. Rev. Lett. 132, 210803 (2024)] have exhibited the mismatch between Bell inequality violations and their…Hari Krishnan SV, Andreas Winter·Aug 23, 2026SaveLearn
Sample-Query Interconversion of Block Encoding of Unknown Quantum StatesBlock encoding embeds a matrix as a sub-block of a unitary matrix and serves as a fundamental input model for quantum algorithms based on quantum singular value transformation, enabling polynomial…Manaki Arihara, Mio Murao·Aug 23, 2026SaveLearn
Error Propagation Theory for Variational Non-Markovian Open Quantum DynamicsVariational approaches based on neural quantum states and physics-informed neural networks provide powerful paradigms for simulating non-Markovian open quantum dynamics. However, extending these…Long Cao, Daochi Zhang, Yao Wang et al.·Aug 23, 2026SaveLearn
Inclusion-Minimal local indistinguishability: a weak form of nonlocalityLocal discrimination of quantum states is a fundamental task in distributed quantum information processing and underlies applications such as quantum communication, data hiding, and secret sharing.…Mao-Sheng Li, Zong-Xing Xiong, Zhu-Jun Zheng et al.·Aug 23, 2026SaveLearn
Laughlin quasihole geometry from a single snapshot ensembleCan a probability distribution measured in one basis determine complex quantum geometry? The answer is affirmative for a lattice Laughlin quasihole. The exact occupation law at one generic reference…Kaushlendra Kumar·Aug 23, 2026SaveLearn
Optimal Nonparametric Estimation of Phase-Space Representations for Non-Gaussian Continuous Variable Quantum StatesWe further develop Kernel Quantum State Estimation (KQSE), a fully data-driven nonparametric method for continuous variable quantum state reconstruction and characterization, introduced in our recent…Vladimir A. Orlov, Liubov A. Markovich·Aug 23, 2026SaveLearn
Spinning giant optomechanical cavity with nonreciprocal self-interferenceWe study a spinning optomechanical cavity that is coupled to a meandering waveguide at multiple spatially separated points, forming a giant-cavity configuration. The resulting self-interference makes…Yao-Tong Chen·Aug 23, 2026SaveLearn
Relaxation-Rectified Anti-Jaynes-Cummings Cascades for Autonomous Fock-State StabilizationWe propose an autonomous scheme for stabilizing prescribed Fock states in a Kerr cavity by rectifying anti-Jaynes--Cummings interactions with auxiliary-qubit relaxation. Full Lindblad simulations…Yan Liu, Jiahua Li·Aug 23, 2026SaveLearn
Bloch states of an infinite alternating-charge lattice under a transverse electric fieldWe consider an infinite one dimensional array of alternating charges embedded in a two-dimensional configuration space and subjected to a weak static electric field transverse to the lattice axis.…Anand Aruna Kumar·Aug 23, 2026SaveLearn
Deterministic preparation of entangled Dicke statesDicke states |J=N/2,m of a collection of N atoms were central to Dicke's theory of superradiance. Except for the fully polarized end states, they are entangled many-body states; in…Hui Wang, Marlan O. Scully, Girish S. Agarwal·Aug 23, 2026SaveLearn
Entanglement governs early-time growth of randomness in projected ensemblesDeep thermalization concerns the emergence of universal pure-state statistics in projected ensembles at late times, yet the mechanism governing the initial growth of randomness remains unclear. Here,…Thuwaragesh Jayachandran, Wai-Keong Mok·Aug 23, 2026SaveLearn
Can a Local Quantum-Mechanical Description of Physical Reality Be Considered Complete?In a complete quantum theory, one would construct it based on what we can observe in a system and operationally define in our universe. This philosophy goes back to some of the original ideals of…E. J. Thompson, J. W. Moffat·Aug 22, 2026SaveLearn
Quantum Optomechanics with Imperfect Mirrors and Casimir-Polder Effect of Atoms with Different Dynamic Polarizabilities: A Unified Treatment via a Microscopic ModelThis work aims at bringing the microphysics model of quantum optomechanics (QOM) proposed in [1] and developed in [2, 3] one step closer to be applicable to realistic experimental conditions,…Bergen Dahl, Bei-Lok Hu·Aug 22, 2026SaveLearn
Conditional Gaussian filtering by Arthurs--Kelly readout in a three-mode cluster wireMeasurement readout programs the Gaussian operation implemented by a continuous-variable cluster wire. For the standard three-node wire, momentum homodyne readout gives an additive parity channel…B. M. Rodríguez-Lara, J. A. Mendoza-Fierro·Aug 22, 2026SaveLearn
qiskit-qudits: A Qiskit Extension for Simulating Qudit Circuitsqiskit-qudits is a Qiskit extension that simulates d-level qudits by encoding each one into m = ceil(log2 d) qubits. Qudit gates are exposed as ordinary Qiskit Gate and ControlledGate subclasses,…Francesco Pudda·Aug 22, 2026SaveLearn
A Cavity-Interfaced Register of Trapped-Ion Qubits with Multi-Second CoherenceScalable quantum networks require generating remote entanglement faster than decoherence erases it, calling for nodes that combine efficient light-matter interfaces with long coherence times.…James Bate, Johannes Helgert, Marco Canteri et al.·Aug 22, 2026SaveLearn
Quantifying Nonstabilizerness of Codeword-Stabilized CodesFault-tolerant quantum computation requires non-Clifford gates, which stabilizer codes cannot supply transversally. Non-stabilizer codes are the natural place to look for them, yet no quantitative…Yuan Liu, Ke-Mi Xu·Aug 22, 2026SaveLearn
Finite-Resolution Limits on Quantum UniquenessThe Stone-von Neumann theorem makes canonical quantization unique only after one imposes strong continuity of the Weyl translation groups. We show that this continuity assumption cannot be certified…Seramika Ariwahjoedi, Sameer Ahmad Mir, Mir Faizal·Aug 22, 2026SaveLearn
Automating detection of Two-Level Systems in Superconducting QubitsMicroscopic two-level system (TLS) defects remain a primary mechanism of decoherence and operational instability in superconducting transmon qubits, necessitating scalable and automated methods for…Rama Khalil, Cameron J. Kopas, Avinash Pathapati et al.·Aug 22, 2026SaveLearn
Towards a Digital Twin for the Ground to QEYSSat Quantum LinkSimulations of physical systems require high-fidelity models to accurately represent reality. Simple models may be analytically tractable, but may not be sufficiently representative of reality for…Henri P. N. Morin, Alex Maierean, Brendon L. Higgins et al.·Aug 22, 2026SaveLearn
Surface-Code Quantum Error Correction for Molecular Tweezer Arrays: Encoding, Layout, and Correlated NoisePolar molecules trapped in optical tweezer arrays offer a promising platform for quantum information processing, providing precise control and long-range interactions that enable high-fidelity gate…Niharika Verma, Utpal Roy·Aug 22, 2026SaveLearn
Experimental Investigation of Tunable-Order Hilbert-Space ErgodicityHilbert-space ergodicity (HSE) provides a new framework for studying thermalization in driven quantum systems, complementing the eigenstate thermalization hypothesis, which is restricted to static…Zou-Wei Pan, Wenquan Liu, Xing Rong·Aug 22, 2026SaveLearn
How Far Can You Do Nothing On a Quantum Computer?We present a route-resolved comparative assessment of Rigetti's Cepheus-1-108Q and IBM Heron-r2 processors using the established 'do-nothing' state-transfer protocol. Rather than…Nitay Mayo, Tal Mor, Aryeh Lev Zabokritskiy·Aug 22, 2026SaveLearn
Belief Propagation-based Disentanglers for Tensor Network State PreparationWe develop a quantum circuit synthesis method for preparing a class of tensor network states. The scheme applies to states tractable with belief propagation (BP), a tensor network gauging scheme…Tomasz Szołdra, Peter Schmelcher·Aug 22, 2026SaveLearn
Noise-Symmetry Optimization of Quantum Error-Corrected MetrologyQuantum error correction (QEC) codes have emerged as a powerful tool to protect quantum-enhanced metrology against noise. However, the ability to correct errors alone does not guarantee high…Shuyun Su, Shengshi Pang·Aug 22, 2026SaveLearn