A solution to 2-copy distillability of Werner statesEntanglement distillation is a fundamental task in quantum information theory. In this work, we prove that Werner states in arbitrary dimension are 2-copy distillable if and only if they are 1-copy…Jinshi Fu, Li Gao, Sang-Jun Park·Jul 27, 2026SaveLearn
Bright Telecom Spin-Photon Interface in Silicon PhotonicsSilicon is an attractive host for scalable quantum photonics, but the absence of bright telecom-band emitters with optically addressable spin states has limited its use for spin-photon interfaces.…Carolina Crosta, Amirehsan Alizadehherfati, Purbita Purkayastha et al.·Jul 27, 2026SaveLearn
New bound on S1× S2-setting Bell locality of a nonseparable Werner stateIn many quantum applications it is important to know whether or not a Bell nonlocal two-qudit state exhibits its nonlocality under correlation scenarios with some given numbers S1,S2≥1 of…Elena R. Loubenets·Jul 27, 2026SaveLearn
Protecting Astronomical Interferometry through Quantum-Memory ScramblingPreserving the complex visibility of coherently captured starlight is essential for quantum-assisted long-baseline interferometry, because this nonlocal coherence carries the spatial information…Jianqi Sheng·Jul 27, 2026SaveLearn
Markovian evolution from a novel schemeThe Markovian dynamics of open quantum many-body systems are typically governed by the Lindblad master equation, yet obtaining the reduced density matrix for bosonic and fermionic systems remains a…Fardin Kheirandish, Zahra Iranshahi, Fatemeh Bakhtiari et al.·Jul 27, 2026SaveLearn
Categorical Tensor-Graph Semantics for Quantum AlgorithmsThis paper investigates foundational quantum computing protocols from the intuitive perspective of categorical tensor-graph semantics within the category FHilb. While conventional…Naihong Hu, Ruining Li, Futao Wang·Jul 27, 2026SaveLearn
Design rules for fault-tolerant multi-gate teleportationMulti-gate teleportation (MGT) packages n remote gates into a single ebit via a 1-ebit fan-out quantum circuit, saving n-1 entangled pairs relative to sequential gate teleportation. The cost is…Mathys Rennela·Jul 27, 2026SaveLearn
Disorder-Induced Enhancement of Fermionic SuperradianceCollective light-matter phenomena such as Dicke superradiance are often described as a collection of effective spins coupled homogeneously to a bosonic mode, giving rise to a collective bright mode…David Pascual Solis, Andrea Legramandi, Soumik Bandyopadhyay et al.·Jul 27, 2026SaveLearn
Enhancing ultracold atomic batteries using many-body resonancesWe study the charging performance of a one-dimensional many-body bosonic quantum battery coupled to a harmonic-oscillator charger. In the weak-coupling regime, we show that the battery--charger…Duc Tuan Hoang, Thomas Busch, Thomás Fogarty·Jul 27, 2026SaveLearn
Global multimode squeezing in a train of ultrashort pulses from unbalanced SU(1,1) interferometersTime-domain multiplexed continuous-variable quantum states provide a promising route toward large-scale quantum networks. Existing platforms are based on continuous-wave pumped optical parametric…Wen Zhao, Xiao Liu, Yunxiao Zhang et al.·Jul 27, 2026SaveLearn
Gate-Level Quantum Simulation of Nonunitary Linear Dynamics with Hybrid Oscillator-Qubit ArchitectureWe translate the one-mode unitary-dilation framework for nonunitary linear dynamics into a gate-level hybrid oscillator--qubit architecture. An ancillary oscillator encodes the kernel through state…Elin Ranjan Das, Muqing Zheng, Rishab Dutta et al.·Jul 27, 2026SaveLearn
To Purify or Not to Purify: Entanglement Purification under Input Fidelity Asymmetry in Quantum NetworksEntanglement purification with two entangled resource pairs is widely employed in the literature on quantum repeater networks to counteract fidelity degradation introduced by noisy quantum memories…Anoosha Fayyaz, Prashant Krishnamurthy, Kaushik Seshadreesan et al.·Jul 27, 2026SaveLearn
Temporal Coarse-Graining as the Origin of Macroscopic Friction in Quantum Spin Chains via Data-Driven Liouvillian ExtractionUnderstanding how macroscopic irreversible hydrodynamics emerges from the reversible unitary dynamics of isolated quantum many-body systems remains a central challenge. Conventional approaches force…Seiki Saito·Jul 27, 2026SaveLearn
Optimization of two-photon excitation by indistinguishable photons in a three-level atomWe investigate the excitation of a three-level ladder-type atom by a unidirectional field with a pair of indistinguishable photons. Starting from an analytical expression for the two-photon…Masood Valipour, Gniewomir Sarbicki, Karolina Słowik et al.·Jul 27, 2026SaveLearn
On the encoding complexity of quantum numerical integration: an angle-structure characterizationWe study numerical integration on [0,1] by quantum amplitude estimation (QAE), with emphasis on the cost of constructing the amplitude oracle. We introduce a hierarchy of grid functions…Francisco Chinesta, Antonio Falco, Daniela Falco-Pomares·Jul 27, 2026SaveLearn
Explainable quantum regression algorithm with encoded data structureHybrid variational quantum algorithms are promising for solving practical problems, such as combinatorial optimization, quantum chemistry simulation, quantum machine learning, and quantum error…C. -C. Joseph Wang, F. Perkkola, I. Salmenperä et al.·Jul 27, 2026SaveLearn
Cavity Control of Strongly Correlated Electrons Beyond Resonant CouplingInterfacing materials with electromagnetic cavities offers a route to modify equilibrium properties through structured vacuum fluctuations. The coupling between light and correlated electrons lacks a…Lukas Grunwald, Xinle Cheng, Emil Viñas Boström et al.·Jul 27, 2026SaveLearn
Fundamental and operational limitations of Fisher-information-based quantum metrologyQuantum-enhanced sensing is commonly benchmarked using the quantum Fisher information (QFI), often interpreted as a direct indicator of achievable precision. However, such an interpreta- tion is only…Zdeněk Hradil, Jaroslav Řeháček·Jul 27, 2026SaveLearn
Progressive Binarization - Pauli Correlation Encoding: a Continuation Method for Constrained OptimizationPauli Correlation Encoding (PCE) reduces the qubit requirements of quantum optimization by embedding the problem variables into the expectation values of Pauli observables, so that the number of…Jacobo Padín-Martínez, Vicente P. Soloviev, Alejandro Borrallo-Rentero et al.·Jul 27, 2026SaveLearn
Entropy production versus memory effects in two-level open quantum systemsWe compare several definitions of entropy production rate introduced in the literature from a large variety of situations and motivations, and then analyze their relations with memory effects.…Guillaume Théret, Dominique Sugny, Camille L. Latune·Jul 27, 2026SaveLearn
The hyperlink representation of entanglement and the inclusion-exclusion principleThe entanglement entropy (EE) of any bipartition of a pure state can be approximately expressed as a sum of entanglement links (ELs). In this work, we introduce their exact extension, i.e. the…Silvia N. Santalla, Sudipto Singha Roy, Germán Sierra et al.·Jul 27, 2026SaveLearn
SeeMPS: A Python-based Matrix Product State and Tensor Train LibraryWe introduce SeeMPS, a Python library dedicated to implementing tensor network algorithms based on the well-known Matrix Product States (MPS) and Quantized Tensor Train (QTT) formalisms. SeeMPS is…Paula García-Molina, Juan José Rodríguez-Aldavero, Jorge Gidi et al.·Jul 27, 2026SaveLearn
Noise-Induced Thermalization in Quantum SystemsIn the current Noisy Intermediate-Scale Quantum era, noise is widely regarded as the primary obstacle to achieving fault-tolerant quantum computation. However, certain stages of the quantum computing…Sameer Dambal, Yu Zhang, Eric R Bittner et al.·Jul 27, 2026SaveLearn
Quantum simulation in the entanglement pictureThe notion of ``picture'' is fundamental in quantum mechanics. In this work, a new picture, which we call entanglement picture, is proposed based on the novel channel-state duality, whose…D. -S. Wang, X. Xu, Y. -D. Liu·Jul 27, 2026SaveLearn
PureMagic: A Dynamic Scheduler for Lattice SurgeryFault-tolerant quantum computation on surface codes requires magic states for universal computation. Traditional distillation factories deliver magic states deterministically but consume large areas…Steven Hofmeyr, Mathias Weiden, Justin Kalloor et al.·Jul 27, 2026SaveLearn