The Born Representation Theorem and the Unistochastic TheoremThis paper presents self-contained, constructive proofs of two new theorems about stochastic matrices, with direct relevance to quantum theory. The first theorem, herein called the Born…Jacob A. Barandes·Aug 5, 2026SaveLearn
Realified tensor networks: quantum circuit simulation on real-valued matrix acceleratorsTensor-network contraction simulates quantum circuits, but modern matrix accelerators (NPUs, TPUs) expose only real GEMM pipelines, so the complex networks of quantum simulation must be reconstructed…Yusheng Zhao, Xiwei Pan, Enji Xiong et al.·Aug 5, 2026SaveLearn
When Complementary Measurements Count the Same Classical Bit Twice: Counterexamples to CQC, ECQC, and Complementarity-Based CertificationMutually unbiased measurements are commonly expected to expose independent facets of a quantum state: a correlation that is classical in one basis should disappear in a complementary basis. In higher…Jinbo Wang, Qihang Wang, Kun Chen·Aug 5, 2026SaveLearn
Revealing and reducing growth-induced interfacial disorder in preferentially aligned nitrogen-vacancy centers in diamondNitrogen-vacancy (NV) centers in chemical-vapor-deposition (CVD) diamond can form preferentially oriented ensembles with high sensing performance and low densities of lattice defects. Thin films of…Cheng-I Ho, Marina Davydova, Patrik Straňák et al.·Aug 5, 2026SaveLearn
Cautious optimism for deep parameterized quantum circuitsA central challenge in quantum machine learning is understanding the scaling behavior of parameterized quantum circuits (PQCs). In particular, it remains unclear how their performance on unseen data…Marie Kempkes, Elies Gil-Fuster, Carlos Bravo-Prieto et al.·Aug 5, 2026SaveLearn
QuantiSpect: A Structure-Aware Lightweight 3D CNN Pre-Decoder for Scalable Surface Code Quantum Error CorrectionReal-time decoding is a critical bottleneck for large-scale fault-tolerant quantum computing. AI-based neural pre-decoders locally correct most physical errors before passing residual syndromes to a…Pan Gao, Xu-Sheng Xu, Ji-Ze Han et al.·Aug 5, 2026SaveLearn
Quantum-Centric Geometry Optimization with Wave-Function-Based EmbeddingThe EWF-(FCI,SQD) method, a wave-function-based embedding approach combining full configuration interaction (FCI) and sample-based quantum diagonalization (SQD), is a promising new tool for the…Danil Kaliakin, Akhil Shajan, Fangchun Liang et al.·Aug 5, 2026SaveLearn
Fixed-Boost Wigner Noise: Strict Trace-Distance Contraction without Quantum DegradabilityA Lorentz boost acts on the canonical spin of a massive particle through a momentum-dependent Wigner rotation. We show that, for one fixed observer boost, reducing over an uncertain momentum can…Maxim V. Churilov·Aug 5, 2026SaveLearn
Maximal Classicalization of Finite-Group Quantum Reference-Frame NoiseA finite quantum reference token with group-valued misalignment induces a random-unitary channel, but optimal degradation is generally an optimization over all quantum post-processings. For a unitary…Maxim V. Churilov·Aug 5, 2026SaveLearn
Ancilla-Depth Phase Diagrams for Quantum Reference-Frame ComparisonComparing two noisy quantum reference frames as statistical experiments depends on the dimension of the ancillary memory available to the decision procedure. For finite-dimensional channels A and B…Maxim V. Churilov·Aug 5, 2026SaveLearn
Passive spectral-admittance bounds and exact continuum certificates for multiresonator quantum-memory interfacesBroadband quantum-memory interfaces are often assessed by center-frequency impedance matching or by a sampled efficiency curve. Neither supplies an operational continuous-band certificate, and…Maxim V. Churilov·Aug 5, 2026SaveLearn
High-Rate and Resource-Efficient All-Photonic Quantum Repeater Architectures with 9 km Repeater SpacingQuantum communication between two distant parties will serve as a cornerstone of the future quantum internet. However, generating enough entangled Bell pairs over long distances is a critical…Ryosuke Shiina, Kenneth Goodenough, Nathan Arnold et al.·Aug 5, 2026SaveLearn
Quantum-Classical Hierarchical Equations of MotionWe develop a quantum-classical hierarchical equations of motion (QC-HEOM) approach for simulating non-Markovian open quantum systems. The method combines the ensemble-averaged classical path…Amartya Bose·Aug 5, 2026SaveLearn
Quantum algorithms for path and cycle containment problemsThe quantum query complexity of subgraph-containment problems, which ask whether a given subgraph H is present in an input graph G, has been the subject of considerable study. However, even for…Arjan Cornelissen, Amin Shiraz Gilani, Subhasree Patro·Aug 5, 2026SaveLearn
Statistics of Marginal Wavefunctions as a Real-Space Diagnostic of Quantum EntanglementWe present a statistical framework for extracting spatially resolved entanglement directly from an ensemble of marginal (one-body) wavefunctions in Time-Dependent Quantum Monte Carlo (TDQMC).…Ivan P. Christov·Aug 5, 2026SaveLearn
Heralding probability optimization for nonclassical light generated by photon counting measurements on multimode Gaussian statesGeneration of highly non-classical quantum states of light is essential for optical quantum information processing and quantum metrology. Given the lack of sufficiently strong nonlinear interactions…Jaromír Fiurášek·Aug 5, 2026SaveLearn
Polarization Tracking and Active Compensation Using Classical Headers in Quantum Wrapper NetworkingQuantum wrapper networking (QWN) is an emerging quantum networking protocol that wraps qubits in classical header bits to enable switching/routing, monitoring, and control without detecting the…Gamze Gül, James van Howe, Gregory S. Kanter et al.·Aug 5, 2026SaveLearn
Quantum target ranging with Hetero-Homodyne detectionQuantum target ranging, which estimates a target position using entangled photon pairs, is known to offer an error-probability advantage over classical ranging strategies. Yet, realizing this…Sangwoo Jeon, Yonggi Jo, Jihwan Kim et al.·Aug 5, 2026SaveLearn
A versatile neural-network toolbox for testing Bell locality in networksDetermining whether an observed distribution of events generated in a quantum network is Bell local, i.e., if it admits an alternative realization in terms of independent local variables, is…Antoine Girardin, Mohammad Massi Rashidi, Géraldine Haack et al.·Aug 5, 2026SaveLearn
Information-Geometric Quantum Process Tomography in Unital Open Single-Qubit DynamicsWe derive an exact information-geometric inequality valid for both Markovian and non-Markovian mixed-state dynamics. This inequality saturates into a strict equality for single qubits because they…T. Koide, A. van de Venn·Aug 5, 2026SaveLearn
Dressed-state master equation for two strongly coupled two-level atoms with long-lived entanglementWe derive a dressed-state master equation in Lindblad form for two strongly coupled two-level atoms. The resulting decay dynamics are governed by Lindblad operators that couple different dressed…Artemisa Villalobos-Ramirez, Juan Mauricio Torres·Aug 5, 2026SaveLearn
Time-Dependent Low-Energy Simulation Accelerates Adiabatic State PreparationHamiltonian simulations are key subroutines in adiabatic quantum computation and quantum many-body physics, where quantum dynamics often happen in the low-energy sector. Previous studies have shown…Shuo Zhou, Zhaokai Pan, Weiyuan Gong et al.·Aug 5, 2026SaveLearn
Entropy and Variance Squeezing of V-type Atom in Dissipative CavityBased on Ref.Riccardi A, we investigate the entropy and variance squeezing of a V-type atom in a dissipative cavity, and discuss the influences of parameters including the spontaneously…Zijin Liang, Qiying Pan, Hong-Mei Zou et al.·Aug 5, 2026SaveLearn
Fundamentals of quantum Boltzmann machine learning with visible and hidden unitsOne of the primary applications of classical Boltzmann machines is generative modeling, wherein the goal is to tune the parameters of a model distribution so that it closely approximates a target…Mark M. Wilde·Aug 5, 2026SaveLearn
High-efficiency loading of 2,400 Ytterbium atoms in optical tweezer arraysNeutral atom arrays have emerged as a powerful platform for quantum computation, simulation, and metrology.Among them, alkaline-earth-like atoms exhibit distinct advantages, including long coherence…Jiawen Zhu, Changfeng Chen, Li Zhou et al.·Aug 5, 2026SaveLearn