Basis-independent coherence and quantum correlations in two dipole-dipole-coupled electrons in double quantum-dot moleculesThis work examines the thermal dynamics of basis-independent quantum coherence and correlation-based quantum resources for two dipole-dipole-coupled electrons confined in spatially separated…Zakaria Bouafia, Neha Pathania, Mostafa Mansour·Jul 23, 2026SaveLearn
Characterising extremal decoherence by quantum measurement incompatibilityDecoherence, when viewed in the Heisenberg picture, can turn incompatible measurements into jointly measurable ones. This provides an observable-level description of emergent classicality in terms of…Daniel McNulty, William Townsend, Jukka Kiukas·Jul 23, 2026SaveLearn
Duality constrains optimal thresholds in quantum error correctionError correction thresholds are often treated as the primary figure of merit for comparing quantum error-correcting code families. We show that the optimal error correction threshold for many…Lucas H. English, Haoyuan Luo, Yangming Wang et al.·Jul 23, 2026SaveLearn
Approximate Quantum State Preparation Through Proximal Policy OptimizationIn this work, a quantum architecture search framework for approximate quantum state preparation (QSP) is proposed. QSP is a challenging task, since the search space grows exponentially with the…Marco Mordacci, Michele Amoretti·Jul 23, 2026SaveLearn
Entanglement, Evolutionary Stability, and Strategy-Space Dependence in an EWL Quantum GameWe examine how Eisert--Wilkens--Lewenstein (EWL) quantization affects evolutionary stability in a symmetric 2×2 game whose interior mixed Nash equilibrium is not evolutionarily stable. In the…Azhar Iqbal, Derek Abbott·Jul 23, 2026SaveLearn
Conditional probabilities in quantum-optical settingsWe examine conditional probabilities derived from the joint noisy measurement of two complementary observables. We show that conditioning on one variable can lead to reduction of uncertainty in the…Alfredo Luis·Jul 23, 2026SaveLearn
Picosecond-resolved entanglement distribution over an urban free-space channelTime-evolving entangled states describe quantum particles whose correlations evolve in time according to a well-defined dynamics. Such states can be generated in a variety of physical systems and are…Alessandro Laneve, Fabrizio Cienzo, Santiago Gomez et al.·Jul 23, 2026SaveLearn
Vacuum-induced interference in light scattering by multilevel atomic chainsWe investigate cooperative light scattering by an ordered chain of multilevel atoms, which possess two quasi-resonant transitions with parallel dipole moments. Interference between dipole transitions…Aleksei Konovalov, Giovanna Morigi, Nicola Piovella·Jul 23, 2026SaveLearn
On-chip Radio Frequency MaserRoom-temperature solid-state masers offer exceptional frequency selectivity and ultra-low noise for weak-signal detection. However, their reliance on bulky metallic resonators has significantly…Hongliang Wu, Zhengtao Wang, Yuchen Han et al.·Jul 23, 2026SaveLearn
A Quantum Interface Between Neutral-Atoms and Trapped-Ions Quantum RegistersHybrid quantum systems combining neutral atoms and trapped ions offer the prospect of integrating the scalability of atom arrays with the high-fidelity control available in trapped-ion platforms.…Ayelet Hasson, Gal Dekel, Ehud Shahar et al.·Jul 23, 2026SaveLearn
Compact deterministic liquid-crystal polarization controller with single-measurement direct controlPolarization controllers (PCs) and their control algorithms are critical for compensating environmental disturbances and maintaining signal fidelity in polarization-sensitive photonic systems.…Ren-De Liu, Jie Wang, Dong-Dong Li et al.·Jul 23, 2026SaveLearn
Large deviations in quantum dynamics and complexityWe study three definitions of large deviation in many-body quantum dynamics: (i) via the full distribution of an extensive observable, (ii) via the distribution of measurement outcomes (from a…Xiangyu Cao, Jorge Kurchan·Jul 23, 2026SaveLearn
An Analytically Trained Variational Surrogate for Quantum Phase Estimation on NISQ HardwareQuantum Phase Estimation (QPE) is a foundational algorithm for molecular ground-state energy estimation, but its deep circuit requirements make direct hardware execution impractical on Noisy…Mousumi Kundu, Ashish Kumar Patra, Anurag K. S. V. et al.·Jul 23, 2026SaveLearn
Generation of bright quantum high-order harmonic driven by combined coherent and bright squeezed vacuum lightAttosecond quantum light, formed by the superposition of high-order harmonics driven by intense quantum light, opens new routes to probe quantum-mechanical correlations in matter. In this study, we…Wentao Wang, Yaoshun Sun, Liyuan Wang et al.·Jul 23, 2026SaveLearn
Random unitary circuits with constant spectral gapWe prove constant lower bounds for the spectral gap of the following random walks on unitary groups SU(2n) on n qubits. (i) Random Pauli Rotation: choose an n-qubit Pauli operator P…Tim Baer, Jeongwan Haah·Jul 23, 2026SaveLearn
Multicritical dissipative phase transitions manipulated by dipole--dipole interactionsPrecise control of criticality in superradiant phase transitions is essential for quantum state engineering and the simulation of nonequilibrium phase transitions. Here, we investigate theoretically…Jia-Xin Wang, Qian Bin, Jing-Jing Cao et al.·Jul 23, 2026SaveLearn
Heralded high-dimensional module-based quantum computationParity measurements have been explored as building blocks for preparing and discriminating entangled states, as well as for implementing quantum computation. We first develop two alternative…Xiao Zhang, Wen-Qiang Liu, Hai-Rui Wei·Jul 23, 2026SaveLearn
Discrete-modulated continuous-variable quantum key distribution with uncertainty principleContinuous-variable quantum key distribution is a compelling framework for scalable quantum networks due to its seamless integration with existing optical communication infrastructure. However, a…Jiale Mi, Yiming Bian, Song Yu et al.·Jul 23, 2026SaveLearn
Hardness and Complexity Transition of Noisy Random Circuit SamplingRandom circuit sampling (RCS) is a leading candidate for demonstrating quantum advantage, supported by strong complexity-theoretic evidence of hardness in the ideal setting and by rapid experimental…Byeongseon Go, Changhun Oh, Hyunseok Jeong·Jul 23, 2026SaveLearn
Irreversibility, equilibrium and measurement in quantum mechanicsQuantum mechanics is widely recognised as being incomplete. It is not consistent with the second law of thermodynamics and does not provide a scientifically credible physical account of the…Christopher J. N. Coveney, Peter V. Coveney·Jul 23, 2026SaveLearn
Cavity-Mediated Charging of a Graphene Excitonic Quantum BatteryWe study the charging and work-extraction properties of a graphene-based excitonic quantum battery embedded in a driven-dissipative optical microcavity. The system consists of a pair of intervalley…Maryam Hadipour, Soroush Haseli·Jul 23, 2026SaveLearn
How many degrees of freedom describe a quantum N-particle state?In Newtonian spacetime, the canonical description of a classical N-particle system requires 3N degrees of freedom. Not all of these are physical, however, since the conservation of the net…Matthew J. Lake, Marek L. Miller·Jul 23, 2026SaveLearn
Geometric Power Capacity of Coherent Ergotropy in Quantum BatteriesWe explore coherent ergotropy extraction in quantum batteries from a resource-geometric point of view. For an initial state ρ, we quantify the coherent extraction process by the coherent ergotropy…Dong-Ping Xuan, Hua Nan, Zhi-Xi Wang et al.·Jul 23, 2026SaveLearn
General theory of monitored Quantum Reservoir ComputingQuantum reservoir computing (QRC) provides a powerful framework for processing temporal data using quantum dynamics, but incorporating measurements into the reservoir remains a fundamental challenge…Oriol Morguí-Sancho, Gonzalo Manzano, Gian Luca Giorgi et al.·Jul 23, 2026SaveLearn
Trotter error compensation with polylogarithmic precision and nested-commutator scaling without ancillasProduct formulas are among the most practical approaches to Hamiltonian simulation, requiring no ancillary qubits and exhibiting error bounds governed by nested commutators rather than only by…Xinzhao Wang, Shuo Zhou, Ziruo Wang et al.·Jul 23, 2026SaveLearn