Quantum Speed Limits and the Ultimate Scaling of the Quantum SensorsQuantum metrology promises sensitivity beyond classical strategies, yet it remains unsettled how quantum-enabled precision should scale with physical resources and how to interpret quantum advantage.…Yusef Maleki·Jul 26, 2026SaveLearn
A Probabilistic Representation for Multi-State Discrete-time Quantum WalksBuilding upon the pioneering framework of Vu (2026), we construct a probabilistic representation for three-state discrete-time quantum walks on integer lattices and validate it through empirical…Hoang Vu·Jul 26, 2026SaveLearn
One Aperture, Two Colors: Depth-Allocated Bilayer Silicon Nitride Gratings for Trapped-Ion AddressingScaling multicolor quantum control on chip presents a geometric conflict: each added wavelength traditionally requires another routing corridor, emitter, and electrode opening, consuming trap-surface…Gyanendra Yadav·Jul 26, 2026SaveLearn
Photon pair antibunching and second-order correlations between pair eventsWe introduce the pair second-order correlation function gpairs(2)= (P)2P2 / PP 2,…Chien-Chang Chen, Ite A. Yu, Hsi-Sheng Goan·Jul 26, 2026SaveLearn
A strong converse for stabilizer codes over Pauli channels via the blowing-up lemmaWe prove a strong converse for quantum communication over Pauli channels within the class of stabilizer codes. If a code whose code space is a full joint eigenspace of a stabilizer group transmits…Marco Tomamichel·Jul 26, 2026SaveLearn
A partial-trace matrix inequality and Werner-state distillabilityMotivated by the equivalent partial-trace formulations of Werner-state distillability [P. Costa Rico, Lett. Math. Phys. 115, 47 (2025); S.-Y. Qi et al., Phys. Rev. A 110, 012406 (2024)], we prove a…Zhiwei Song, Lin Chen·Jul 26, 2026SaveLearn
Multiconfigurational Mixed Quantum-Classical Approach for Correlated Many-Body DynamicsIn this work, we introduce a multiconfigurational mixed quantum-classical many-body approach for simulating the finite-temperature correlated multi-exciton dynamics in the presence of phonon-induced…Pritha Ghosh, Rajanya Sarkar, Arkajit Mandal·Jul 26, 2026SaveLearn
Highly integrated quantum key distribution transmitter enabled by silicon photonicsQuantum key distribution (QKD) provides information-theoretic security independent of computational assumptions, yet the bulk and cost of current systems hinder large-scale deployment. Although…Rende Liu, Yan-Lin Tang, Cheng-Guang Dong et al.·Jul 26, 2026SaveLearn
Performance Analysis of QAOA Across Distributed Quantum Network Topologies Using SwitchQNetQuantum data-center (QDC) architectures aim to scale distributed quantum computing (DQC) by interconnecting multiple quantum processing units (QPUs), but their performance depends strongly on how…Samanvay Sharma, Siyuan Niu, Amin Taherkhani et al.·Jul 26, 2026SaveLearn
Optimal Quantum Metrology for Probing the Unruh Effect with Uniformly Accelerated Two-Level AtomsWe develop a quantum metrological framework for optimizing the probing of the Unruh effect using uniformly accelerated two-level atomic probes. The acceleration-dependent factor generated during the…Yao Jin·Jul 26, 2026SaveLearn
Structure-Agnostic Unitary Learning from Quantum Observable Dynamics with Application to Hamiltonian IdentificationWe present a variational algorithm for learning an unknown quantum unitary from time-series observable measurements, with no structural assumption about the target. The core separation: a…Mohamed Berkani·Jul 26, 2026SaveLearn
Genuine Global Kochen-Specker Contextuality as Classical Coordination CostWe formulate classical simulation of quantum correlations as coordination across a spacetime separator. All past-dependent information capable of influencing the future must cross the separator…Ming Yang·Jul 26, 2026SaveLearn
Aligning Quantum Operators with Large Language ModelsCan Large Language Models (LLMs) understand and reason about quantum operators? Despite their remarkable capabilities in mathematics and symbolic reasoning, LLMs remain inherently blind to quantum…Rogerio Feris, Yunchao Liu, Pengyuan Li et al.·Jul 26, 2026SaveLearn
A2QTGN: Adaptive Amplitude Quantum-Integrated Temporal Graph Network for Dynamic Link PredictionDynamic link prediction is important for modeling evolving interactions in social, communication, financial, and transportation networks. Classical temporal graph models capture changes over time,…Nouhaila Innan, M. Murali Karthick, Simeon Kandan Sonar et al.·Jul 26, 2026SaveLearn
Permutation-symmetric quantum trajectoriesWe show how one may perform a stochastic unravelling which respects weak permutation symmetry for general models of N emitters coupled to a common system (e.g. a cavity mode). Our work extends…Elliot W. Lloyd, Aleksandra A. Ziolkowska, Jonathan Keeling·Jul 26, 2026SaveLearn
Architecture-aware Unitary SynthesisWe present a novel architecture-aware transpilation method for exact general unitary gate synthesis on superconducting quantum hardware. Our approach is tightly integrated with the optimized…Frans Perkkola, Arianne Meijer-van de Griend, Jukka K. Nurminen·Jul 26, 2026SaveLearn
Characterizing entanglement dynamics in QED scattering processesWe study entanglement dynamics among helicity degrees of freedom in quantum electrodynamics (QED) scattering processes. For generic initial states, we consider scattering at fixed momentum,…Massimo Blasone, Silvio De Siena, Gaetano Lambiase et al.·Jul 26, 2026SaveLearn
Theory of the Collective Many-body Subradiance in Waveguide Quantum ElectrodynamicsWe present an analytical theory for the most subradiant modes in a finite one-dimensional emitter array coupled to either an ideal or a nonideal waveguide. Using an effective non-Hermitian…Xin Wang, Junjun He, Zeyang Liao·Jul 26, 2026SaveLearn
Quantum-enhanced estimation of signal field amplitudes with critical squeezed states of photonic modesCritical phenomena of quantum systems offer a promising strategy to improve measurement precision. So far, many criticality-enhanced quantum metrological schemes have been proposed by using the…Ken Chen, Jia-Hao Lv, Wen Ning et al.·Jul 26, 2026SaveLearn
Quantum information scrambling in strongly disordered Rydberg spin systemsDespite the fact that power-law interactions occur in a plethora of physical systems, their many-body dynamics is far less understood than that of nearest-neighbor interacting systems. Here, we study…Maximilian Müllenbach, Sebastian Geier, Adrian Braemer et al.·Jul 26, 2026SaveLearn
Super-Heisenberg-limited Sensing via Collective Subradiance in Waveguide Quantum ElectrodynamicsWe explore the quantum-metrological potential of subwavelength-spaced emitter arrays coupled to a one-dimensional nanophotonic waveguide. In this system, strong dipole--dipole interactions profoundly…Xin Wang, Zeyang Liao·Jul 26, 2026SaveLearn
Exploring fixed points and eigenstates of quantum systems with reinforcement learningWe introduce a reinforcement learning algorithm designed to identify the fixed points of a given quantum operation. The method iteratively constructs the unitary transformation that maps the…María Laura Olivera-Atencio, Jesús Casado-Pascual, Denis Lacroix·Jul 26, 2026SaveLearn
Quantum Action-Dependent ChannelsWe study communication over a quantum action-dependent channel, where the transmitter first performs an action that "shocks" the channel environment, and subsequently encodes a message into a…Michael Korenberg, Uzi Pereg·Jul 26, 2026SaveLearn
Sample-optimal single-copy quantum state tomography with shallow-depth measurementsQuantum state tomography (QST) is a central task in quantum information, and its efficiency is commonly characterized by sample complexity. Although collective measurements on multiple copies achieve…Gyungmin Cho, Dohun Kim·Jul 26, 2026SaveLearn
Modulator-Assisted Zeno Control of Energy Transfer in Quantum BatteriesEfficient operation of quantum batteries requires not only fast energy transfer but also the ability to halt the charging process to prevent reverse flow. Existing approaches typically rely on direct…Songbo Xie, Manas Sajjan, Ashok Ajoy et al.·Jul 26, 2026SaveLearn