Quantum thermalization achieves optimal approximate quantum error correctionQuantum thermalization explains how an isolated many-body system naturally evolves towards a thermal state, rendering information about the initial conditions inaccessible to local measurements. This…Aditi Venkatesh, Richard R. Allen, Saúl Pilatowsky-Cameo et al.·Sep 3, 2026SaveLearn
Non-local Magic: closed-form solution and equivalence with magic of purificationNon-local magic quantifies the non-stabilizerness of a bipartite quantum state that cannot be removed by local unitary transformations. Despite its natural definition, its evaluation generally…Michele Viscardi, Lorenzo Leone, Alioscia Hamma·Sep 3, 2026SaveLearn
Gravitationally Induced Entanglement Across an Event HorizonIt has long been assumed that a particle--having crossed a black hole event horizon unentangled with another particle in the exterior universe--can no longer dynamically entangle with that particle.…Hatim Salih·Sep 3, 2026SaveLearn
Frequency-Multiplexed Parallel Gates for Quantum LDPC Codes in a Two-Dimensional Ion CrystalQuantum low-density parity-check (qLDPC) codes admit high encoding rates but require nonlocal entangling gates for syndrome measurement. Instead of physically moving the qubits which slows down with…G. -X. Tang, L. -M. Duan, Y. -K. Wu·Sep 3, 2026SaveLearn
Algebraic Operator Decomposition: A Partitioned Architecture for Noise-Resilient Quantum ComputingWe present an operator-decomposition architecture that mathematically maps a global operator into independently executable local operators, reducing the maximum quantum circuit depth at the cost of…Wladimir Silva·Sep 3, 2026SaveLearn
Small-quench Loschmidt dynamics near quantum critical pointsWe study the short-time Loschmidt dynamics after a small sudden quench near a quantum critical point. We show that the initial quadratic growth of the Loschmidt rate function is governed by the…Kohei Kobayashi·Sep 3, 2026SaveLearn
Quantum-Enhanced Phase Estimation with Photon-Added Even and Odd Coherent States in an SU(1,1) InterferometerWe investigate phase estimation in an SU(1,1) interferometer employing m-photon-added even and odd coherent states as nonclassical input resources. The phase sensitivity is evaluated through…Abdelmajid El Maaroufi, Mouad Ait Maskour, Bouchra Maroufi et al.·Sep 3, 2026SaveLearn
Discrete time crystals in disordered anisotropic Heisenberg chainsA discrete time crystal is an out-of-equilibrium phase of matter characterized by the spontaneous breaking of discrete time-translation symmetry. Using extensive numerical simulations based on…Francesco Formicola, Grazia Di Bello, Antonio De Candia et al.·Sep 3, 2026SaveLearn
Robust multi-hypothesis quantum-state discrimination under unknown common unitary perturbations via least favorable priorsWe study robust K-ary quantum-state discrimination when all candidate states are affected by the same unknown common unitary perturbation. The unknown perturbation does not represent the label to be…Daichi Fujiki, Fuyuhiko Tanaka·Sep 3, 2026SaveLearn
On the geometry and typicality of quantum magicWe prove that, for an n-qubit system of dimension d=2n, every state satisfying Tr(ρ2) 1/(d-a), with a=0.458327·s, lies inside the stabilizer polytope and is…Zhenhuan Liu, Z-Wen Liu·Sep 3, 2026SaveLearn
Approximate maximum-likelihood decoding via truncated free energiesMaximum-likelihood decoding (MLD) achieves the minimum logical error rate of stabilizer codes under known i.i.d. Pauli noise, but its exact evaluation is \#P-hard. Practical pipelines therefore…Yuanqi Liu, Weilei Zeng, Junjie Wu et al.·Sep 3, 2026SaveLearn
Ultra-Precise Quantum Projective Designs in Constant DepthRandom quantum objects are powerful resources for quantum information processing, yet exact Haar randomness is costly and typically unnecessary. We introduce an explicit sparse commuting circuit…Qingyue Zhang, Junjie Chen, Zhou You et al.·Sep 3, 2026SaveLearn
Spin-to-polarization mapping with a coherent quantum dot-cavity receiverCoherent light-matter interfaces controllably modifying the state of a photon upon interaction with a stationary qubit are a key resource for implementing deterministic entangling gates for optical…Adrià Medeiros, Vincent Vinel, Eliott Rambeau et al.·Sep 3, 2026SaveLearn
Five-Dimensional Compatibility and Stratified Local-Unitary Structure of Pure Three-Qubit StatesWe investigates the joint compatibility problem of the three pairwise concurrences, the three-tangle, and the Kempe invariant in arbitrary pure three-qubit states, and gives necessary and sufficient…Wei Song, Xiao-Lan Zong, Ming Yang·Sep 3, 2026SaveLearn
Energetic Costs of Subspace Quantum Error CorrectionQuantum error correction acts as an entropy pump, transferring noise-induced uncertainty from a protected quantum system into syndrome information stored in an auxiliary memory. Repeated operation…Jakub Czartowski, Felix C. Binder·Sep 3, 2026SaveLearn
Quantum Query Complexity of Finding a Tarski Fixed Point on a High-Dimensional GridThe Knaster-Tarski fixed-point theorem states that every monotone function over a complete lattice has a fixed point. Beyond its fundamental role in order theory, the theorem and its algorithmic…Tongyang Li, Weiran Ma, Ziyi Yang et al.·Sep 3, 2026SaveLearn
Quantisation of Abstract Data TypesIn this paper, we introduce a notion of abstract quantum data type within the framework of universal algebra. This notion provides an algebraic foundation for describing data abstraction in quantum…Mingsheng Ying, Zhicheng Zhang, Kean Chen·Sep 3, 2026SaveLearn
Metricity of separable quantum optimal transport with the Hilbert-Schmidt costWe prove that the square root of the separable quantum optimal transport cost associated with the orthogonal projection onto the antisymmetric subspace defines a genuine distance between density…Tomasz Miller·Sep 3, 2026SaveLearn
Thermodynamic Irreversibility from Inaccessible Endogenous Quantum HistoriesMicroscopic unitary dynamics preserves all fine information, yet an isolated finite system can show a robust thermodynamic window in which the entropy associated with a restricted record rises. We…Borhan Ahmadi·Sep 3, 2026SaveLearn
Analog quantum simulation of bosonic and anyonic models with flux-driven transmonsWhen quantum particles interact, many-body phenomena that are hard to simulate classically emerge. Quantum analog simulation offers an alternative in which the target system's dynamics is…Isak Lyngfelt, Jorge Fernández-Pendás, Göran Johansson et al.·Sep 3, 2026SaveLearn
Q-Edge: Symmetry-Reduced Quantum Simulation of Structured Extreme DependenceHigh-dimensional simulation of multivariate extremes is fundamentally limited by the combinatorial complexity of dependence, often more than by the scarcity of extreme observations. We show that…Hongrui Zhang, Paolo Recchia, Ying Chen·Sep 3, 2026SaveLearn
Fractalizing spacetime: Floquet codes with fractonic excitations that are immobile in space and timeWe generalize fractalization, a procedure for the construction of fracton models, from space to spacetime. We apply spacetime fractalization to construct fracton floquet codes with syndrome…Juliette Soule, Dominic J. Williamson·Sep 3, 2026SaveLearn
Quantum Hamiltonian Evolution for Coherent Quantum LearningWe introduce Coherent Quantum Learning (CQL), a training framework for quantum learning models in which the model parameters are quantum degrees of freedom evolved under a Hamiltonian that encodes…Ignacio B. Acedo, Javier Gonzalez-Conde, Pablo Rodriguez-Grasa et al.·Sep 3, 2026SaveLearn
Entanglement dynamics of accelerated atoms with environment-induced interactionsWe investigate the influence of environment-induced interactions on the entanglement dynamics of two uniformly accelerated atoms coupled to a fluctuating massless scalar field with a reflecting…Xuerui Zhou, Chenhao Ma, Zixu Zhao·Sep 3, 2026SaveLearn
Quantum Quasi-Monte Carlo: a window for pre-asymptotic quantum advantageNumerical integration with Monte Carlo methods is a central computational task in many scientific and industrial applications, including financial derivative pricing and risk management. Classical…Paolo Recchia, Zhan Yu, Kelvin Koor et al.·Sep 3, 2026SaveLearn