Quantum Noncommutativity Uniquely Determines Relative EntropyQuantum relative entropy is a core concept in physics, governing the limits of communication, thermodynamic irreversibility and quantum resource conversion. However, the requirement that physical…Gilad Gour·Jul 30, 2026SaveLearn
Device-Agnostic Microwave Noise Metrology for Nonlinear Cryogenic Quantum DevicesMicrowave devices capable of near-quantum-limited signal processing are essential components in the toolbox of solid-state quantum technologies. The manipulation and readout of single-photon…Andrea Celotto, Alessandro Alocco, Bernardo Galvano et al.·Jul 30, 2026SaveLearn
Mechanical Squeezed-Fock GravimeterLevitated mechanical systems are promising candidates for quantum gravimetry, as gravity couples directly to their center-of-mass motion, enabling the large mass of a mesoscopic particle to serve as…Rozhin Yousefjani, Saif Al-Kuwari·Jul 30, 2026SaveLearn
Toward Hop-Independent Fidelity in Quantum Data Centers: Resource Requirements for Entanglement PurificationQuantum data-center networks must distribute entanglement between QPUs over paths whose length grows with system scale, but each entanglement-swapping step reduces the quality of the raw end-to-end…Mohadeseh Azari, Anoosha Fayyaz, Amy Babay et al.·Jul 30, 2026SaveLearn
Transmitter-device-independent quantum key distributionTransmitter-side device dependence is a longstanding yet implicit problem in quantum key distribution (QKD), in contrast to the thoroughly addressed measurement-side case. Quantum steering, which…Qiang Zeng, Abhishek Mishra, Haoyang Wang et al.·Jul 30, 2026SaveLearn
Correlated decoherence in a common environment activated by relative motionWe study two spatially separated boundary subsystems coupled to a common structured environment under relative motion within a Gaussian open-system framework. By integrating out the environment, we…Yang Wang, Zhilei Sun, Feiyi Liu et al.·Jul 30, 2026SaveLearn
Symmetry-driven thermalization via finite de Finetti theoremsThermal behavior in subsystems of closed quantum systems is commonly attributed to dynamical chaos, quantum ergodicity, canonical typicality, or the eigenstate thermalization hypothesis, suggesting a…Uttam Singh, Nicolas J. Cerf·Jul 30, 2026SaveLearn
Qubit syndrome measurements with a high fidelity Rb-Cs Rydberg gateWe demonstrate an inter-species entangling Rydberg gate between rubidium (Rb) and cesium (Cs) atoms with fidelity F = 0.975 0.002. The two-species atom array enables in-place quantum…J. Miles, M. T. Lichtman, A. M. Scott et al.·Jul 30, 2026SaveLearn
Hybrid Quantum Error Correction and Mitigation by PurificationQuantum error correction physically removes errors from a quantum state, while quantum error mitigation improves observable estimates by processing noisy measurement data. We introduce…Jonathan Raghoonanan, Tim Byrnes·Jul 30, 2026SaveLearn
Universal Sample Complexity Bounds in Quantum Learning Theory via Fisher Information MatrixWe show that the sample complexity required in quantum learning theory within a general parametric framework is fundamentally governed by the inverse Fisher information matrix. More specifically, we…Hyukgun Kwon, Seok Hyung Lie, Liang Jiang·Jul 30, 2026SaveLearn
Efficient circuit compression by multiqudit entangling gates in linear optical quantum computationLinear optical quantum computation (LOQC) offers a promising platform for scalable quantum information processing, but its scalability is fundamentally constrained by the probabilistic nature of…Apurav Tehri, Jaskaran Singh·Jul 30, 2026SaveLearn
Pareto Front Engineering of Dynamical Sweet Spots in Superconducting QubitsOperating superconducting qubits at dynamical sweet spots (DSSs) suppresses decoherence from low-frequency flux noise. A key open question is how long coherence can be extended under this strategy…Zhen Yang, Shan Jin, Yajie Hao et al.·Jul 30, 2026SaveLearn
Efficient Trotter-Suzuki Schemes for Long-time Quantum DynamicsAccurately simulating long-time dynamics of many-body systems is a challenge in both classical and quantum computing due to the accumulation of Trotter errors. While low-order Trotter-Suzuki…Marko Maležič, Johann Ostmeyer·Jul 30, 2026SaveLearn
On the Stochastic-Quantum CorrespondenceThis paper aims to first explain, somewhat more clearly, the Stochastic-Quantum correspondence put forward in by Barandes in 2023. Specifically, the quantum-mechanical bra-ket notation is used,…Sami Calvo·Jul 30, 2026SaveLearn
Unifying Quantum and Classical DynamicsClassical and quantum physics represent two distinct theories; however, quantum physics is regarded as the more fundamental of the two. It is posited that classical mechanics should arise from…Abdul Rahaman Shaikh, Tabish Qureshi·Jul 30, 2026SaveLearn
Lindbladian PT phase transitionsA parity-time (PT) transition is a spectral transition characteristic of non-Hermitian generators; it typically occurs at an exceptional point, where multiple eigenvectors coalesce. The concept of a…Yuma Nakanishi, Tomohiro Sasamoto·Jul 30, 2026SaveLearn
Symbolic Pauli Propagation for Gradient-Enabled Pre-Training of Quantum CircuitsQuantum Machine Learning models typically require expensive on-chip training procedures and often lack efficient gradient estimation methods. By employing Pauli propagation, it is possible to derive…Saverio Monaco, Jamal Slim, Florian Rehm et al.·Jul 30, 2026SaveLearn
Heralded generation of a three-mode NOON stateEntangled states of photons form the foundation of quantum communication, computation, and metrology. Yet their generation remains fundamentally constrained: in the absence of intrinsic photon-photon…Sukhjit P. Singh, Elnaz Bazzazi, Diego N. Bernal-García et al.·Jul 30, 2026SaveLearn
Statistical properties of quantum jumps between macroscopic states of light: reading an operational coherence recordWe propose an experimental apparatus to reveal the quantum coherence manifested in downward quantum jumps of amplitude bistability. The underlying coherent superposition of macroscopic quantum states…Th. K. Mavrogordatos·Jul 30, 2026SaveLearn
Boosting Work Extraction in Quantum Batteries via Continuous Environment MonitoringDuring the charging process, interactions between a quantum battery and its charger generally generate quantum correlations, which may reduce the amount of work extractable from the battery alone. We…Gabriele Cenedese, Giuliano Benenti, Dario Ferraro et al.·Jul 30, 2026SaveLearn
Quantum advantage for single-photon state characterizationWe propose a multiphoton interference protocol that characterizes the pairwise overlaps of the internal modes of single photons more efficiently than pairwise Hong-Ou-Mandel characterization…S. N. van den Hoven, M. C. Anguita, S. Marzban et al.·Jul 30, 2026SaveLearn
Accelerated optimization of measured relative entropiesThe measured relative entropy and measured Rényi relative entropy are quantifiers of the distinguishability of two quantum states ρ and σ. They are defined as the maximum classical relative…Zixin Huang, Mark M. Wilde·Jul 30, 2026SaveLearn
Quantum optical neural networks using atom-cavity interactions to provide all-optical nonlinearityOptical neural networks (ONNs) have been developed to enhance processing speed and energy efficiency in machine learning by leveraging optical devices for nonlinear activation and establishing…Chuanzhou Zhu, Tianyu Wang, Peter L. McMahon et al.·Jul 30, 2026SaveLearn
Quality assessment of quantum teleportation through the distribution of fidelityIn this work, we introduce a comprehensive statistical framework for assessing single-qubit quantum teleportation performance beyond the conventional average-fidelity benchmark. At first, we derive a…D. G. Bussandri, G. M. Bosyk, P. Crespo Del Amo et al.·Jul 30, 2026SaveLearn
Amplituhedra for generic quantum processes via the TQNN representation of UQCWe study the relationship between computation and scattering both operationally (hence phenomenologically) and formally. We develop a representation of universal quantum computation (UQC) within the…Chris Fields, James F. Glazebrook, Antonino Marcianò et al.·Jul 30, 2026SaveLearn