Dynamical protection of quantum steering and fidelity dynamics in double Jaynes-Cummings modelWe investigate the dynamics of Einstein-Podolsky-Rosen (EPR) steering in a double Jaynes-Cummings model, where two initially entangled spatially separated two-level atoms in two cavities interact…Koushik Mandal, Chitra Rangan, Shohini Ghose·Aug 18, 2026SaveLearn
Improved Transversal Non-Clifford Gates from Cup ProductsIt is a major challenge in quantum fault-tolerance to obtain low-overhead protocols for performing non-Clifford gates. In this vein, we construct quantum codes with low-weight stabilizers that…Louis Golowich, Itzhak Tamo, Guanyu Zhu·Aug 17, 2026SaveLearn
Improved lower bound for the two-way-assisted quantum capacity of the bosonic thermal-loss channelThe bosonic thermal-loss channel is a fundamental model for quantum communication. This Gaussian channel models the transmission of bosonic systems subject to both loss and thermal noise. It…Matthew Barber, Stefano Pirandola·Aug 17, 2026SaveLearn
The Pauli Probability Spectrum Carries the Pure-State Quantum Fisher MetricHow a quantum state responds to small parameter changes underlies state distinguishability, many-body response, and metrological sensitivity. The Pauli probability spectrum provides a natural…E. A. Ramirez Trino, M. A. Rajabpour·Aug 17, 2026SaveLearn
Complex-Time Parametrization of Evanescent Tunneling and Transmission Delay in non-Hermitian ScatteringThe quantum tunneling process is a fundamental concept that presents the unconventional nature of quantum dynamics. The main anomaly of this effect revolves around the choice of imposing the…Iulia-Maria Daia·Aug 17, 2026SaveLearn
Maximal-Rank Squeezing from Rank-One Quenches: An Exact Spectral-Reachability Theorem for Gaussian Bosonic SystemsWe prove an exact spectral-reachability theorem for multimode squeezing generated by finite-rank quadratic quenches in Gaussian bosonic systems. For a stable sign-definite stiffness quench $Ω2 …Kamran Ansari·Aug 17, 2026SaveLearn
One-at-a-Time Quantum Guessing: Multipartite Entanglement Beyond MoE GamesMultipartite entanglement remains a challenging and not fully understood aspect of quantum information. Monogamy-of-Entanglement (MoE) games have been highly effective for studying limitations on the…Michael Schleppy, Emina Soljanin·Aug 17, 2026SaveLearn
Fast Nondestructive Readout for High-Clock-Rate Atom Array Quantum ProcessorNeutral-atom arrays have rapidly advanced to support thousands of qubits and execute high-fidelity logical operations. However, these processors remain severely throttled by their slowest fundamental…Xu-Zhao-Qiu Zeng, Chang You, Qing-Wei Wang et al.·Aug 17, 2026SaveLearn
Gate-level Implementation and Resource Analysis of Lackadaisical Quantum Walk SearchLackadaisical quantum walks (LQW) extend discrete-time quantum walks (DTQW) by introducing weighted self-loops, enabling improved spatial-search performance through controlled localization of the…Amit Saha, Debanjan Kola, Nishanka Das et al.·Aug 17, 2026SaveLearn
Entanglement assisted quantum (r,δ)-locally recoverable codesQuantum (r,δ)-locally recoverable codes are quantum error-correcting codes capable of correcting δ-1 qudit erasures within one subset of qudits of cardinality at most r+δ-1. In this paper, we…Carlos Galindo, Fernando Hernando, Helena Martín-Cruz et al.·Aug 17, 2026SaveLearn
Block Encoding Non-Abelian Lattice Gauge TheoryGauge theories like lattice QCD present a complex problem for quantum simulation. In a basis where the electric part of the Hamiltonian is simple, the magnetic part, generally expressed as a sum over…Patrick Draper·Aug 17, 2026SaveLearn
Hardness of approximation for minimum-weight decoding of two-dimensional topological quantum codesEfficient decoding is essential for the practical realization of fault-tolerant quantum computers. We study the computational complexity of minimum-weight decoding for topological quantum codes. For…Louay Bazzi, Georges Khater·Aug 17, 2026SaveLearn
Lie-Algebraic Classical Simulation of Bosonic Systems Beyond Gaussian DynamicsClassical simulability is ultimately determined by both the dynamics of a quantum system and the observables being evaluated. Lie-algebraic simulation exploits the latter to make exact…Adelina Bärligea, Timothy Heightman, Jakob S. Kottmann et al.·Aug 17, 2026SaveLearn
Readout Orientation Controls Measurement-Accessible Quantum Tangent GeometryA fixed quantum measurement can expose substantially more tangent information than a restricted observable readout retains. We study this second restriction. For a normalized covariance $C …Marwan Ait Haddou·Aug 17, 2026SaveLearn
Dynamic Entanglement-Weighted Pruning for Quantum Federated Unlearning in Supply-Chain Risk PredictionFederated deployments of variational quantum classifiers are attractive for cross-organisation risk prediction in supply chains, because raw data never leaves the client, yet data-protection…Aditya Kumar, Sumit Chongder·Aug 17, 2026SaveLearn
Exact Moments of Gaussian Gram Hafnians Reveal an n2/ n Threshold for Weak AnticoncentrationAnticoncentration is central to hardness arguments for approximate sampling. In the independent Gaussian surrogate for collision free Gaussian boson sampling, the moment ratio studied here also…Hongru Zhao·Aug 17, 2026SaveLearn
Eigenframe Synchronization in Disordered Driven Quantum EnsemblesPeriodic driving underlies many forms of quantum control, including spin-based quantum sensing. However, in an ensemble sensor, one waveform must act on spins with different detunings, drive…Saipriya Satyajit, Zechuan Yin, Jner Tzern Oon et al.·Aug 17, 2026SaveLearn
Hardware-Aware Compilation and Execution of Bivariate Bicycle Codes on Neutral-Atom SystemsQuantum computers are noisy; without quantum error correction (QEC), deep programs fail as qubits lose information due to decoherence. Among QEC approaches, bivariate bicycle (BB) codes offer low…Jason Ludmir, Aditya Ranjan, Nicholas S. DiBrita et al.·Aug 17, 2026SaveLearn
Multi-purpose quantum laboratories from superconducting circuitsSuperconducting circuits (SCs) are the cornerstone of modern quantum technology, enabling scalable computing through coherent control of macroscopic quantum states. Through a legacy that predates…Arpit Arora, Emily M. Been, William Munizzi et al.·Aug 17, 2026SaveLearn
Sound and Efficient Certification of High-Quality Qubit Operations: Theory and ExperimentCan a high-quality quantum gate be certified when uncharacterized state-preparation and measurement errors are dominant? Can this be achieved with low experimental overhead? Here, we introduce a…Nikolai Miklin, Jan Nöller, José Martínez et al.·Aug 17, 2026SaveLearn
Non-CSS Quantum Code EmbeddingWe generalize the unified framework in [Phys. Rev. A 113, 022438 (2026)] to accommodate arbitrary stabilizer codes (referred as non-CSS for emphasis). The generalization has immediate consequences in…Andrew C. Yuan, Nouédyn Baspin·Aug 17, 2026SaveLearn
Basis-update and Galerkin time integration in canonical matrix-product-state formMatrix product state algorithms must enlarge their bond spaces as entanglement grows and compress them to control cost. We formulate basis-update and Galerkin (BUG) time integration as a sequence of…Maximilian Fröhlich, Richard M. Milbradt, Martin Eigel et al.·Aug 17, 2026SaveLearn
Fault-Tolerant Quantum Computation with Adversarial ErrorsWe prove a fault-tolerance theorem for quantum computation against adversarial noise. For every quantum circuit on N logical qudits of depth T, we construct a fault-tolerant circuit…Nikolas P. Breuckmann, Louis Golowich, Umesh Vazirani·Aug 17, 2026SaveLearn
Global Minimax Readout of a Qubit DirectionWe determine the exact worst-direction Fisher-information cost of using a parameter-independent readout to estimate an unknown qubit direction at known Bloch-vector length η. Every fixed-local…Abbas Taherpour, Amirhossein Taherpour, Tamer Khattab·Aug 17, 2026SaveLearn
Classical-limit formula for matrix elements between bound states of distinct one-dimensional potentialsA classical-limit formula is derived for matrix elements between bound states of distinct one-dimensional potentials. We leave open the physical interpretation of the potentials, but generally…K. Beloy·Aug 17, 2026SaveLearn