Identifying slow relaxation in many-body quantum systems through state-graph geometry and state-graph heterogeneityWe adapt tools from the theory of quantum random walks to investigate slow relaxation dynamics through the many-body state graph. Specifically, we construct a probe of heterogeneity between basis…Heiko Georg Menzler, Tom Ben-Ami·Aug 5, 2026SaveLearn
Scalable Circuit Cutting: A Framework for Combined Gate and Wire Cuts Using Gate GroupsQuantum circuit cutting enables the execution of large circuits on devices with a limited number of qubits by partitioning circuits into independent subcircuits. However, this introduces a sampling…Fiona Jiali Fröhler, Yannick Stade, Christian Ufrecht et al.·Aug 5, 2026SaveLearn
Relative entropy of entanglement of Haar random statesWe determine the relative entropy of entanglement of a bipartite mixed state ρAB obtained by tracing out one subsystem of a tripartite Haar-random pure state |ψABC, finding…Takato Mori, Beni Yoshida·Aug 5, 2026SaveLearn
Cluster-State Witnesses of Finite-Speed Hidden InfluencesBell experiments rule out local common-cause explanations of quantum correlations, yet they do not exclude hidden influences that travel faster than light while still having a finite speed in a…Weikang Li, Mengyao Hu, Dong-Ling Deng et al.·Aug 5, 2026SaveLearn
One Qubit Can Beat One Bit: Quantum Advantage for Post-Training QuantizationOne-bit post-training quantization represents each weight using only its sign, requiring all deployment contexts to share the same binary weight matrix even when their activation statistics favor…Yuma Ichikawa, Moeto Mishima·Aug 5, 2026SaveLearn
Quantum Error Management in Practice: A Cross-Stack BenchmarkQuantum processors have crossed the one-hundred-qubit mark, but noise continues to limit circuit performance, while full quantum error correction remains too costly for routine use. Error suppression…Daniel Sierra-Sosa, Begonya Garcia-Zapirain, Cristian Marquez et al.·Aug 5, 2026SaveLearn
Fast Quantum Interconnects via Neutral Atom EnsemblesDistributing entanglement between distant qubits is a crucial element of scalable quantum computing. Here, we describe a scalable quantum interconnect that generates remote entanglement at rates…Sina Zeytinoglu, Wenchao Xu, Thomas Pohl·Aug 5, 2026SaveLearn
Representational separation between unitary and channel quantum generative models via shared classical randomness at shallow depthNear-term quantum hardware limits circuit depth and often imposes geometrically local connectivity for quantum generative models, restricting the output distributions accessible to shallow unitary…Arunava Majumder, Marius Krumm, Hendrik Poulsen Nautrup et al.·Aug 5, 2026SaveLearn
Imaginarity as a necessary resource for trainability in QAOAThe quantum approximate optimization algorithm (QAOA) tackles combinatorial problems by tuning a quantum circuit in a classical loop, often guided by gradients. We show that the gradient used to tune…Syed Muhammad Ali Hassan, Kostas Blekos, Stefan Kühn et al.·Aug 5, 2026SaveLearn
Perfect Games in Dimension-Bounded CommunicationPerfect prepare-and-measure games exhibit an all-or-nothing quantum advantage: a quantum system of dimension d satisfies every prescribed winning constraint, whereas a classical d-level message…Emmanuel Zambrini Cruzeiro·Aug 5, 2026SaveLearn
Constructing Non-Hermitian Theories with Tunable Exceptional Points and Controlled State PurificationExceptional points (EP's) are a hallmark of non-Hermitian quantum systems. We show that momentum-space deformation provides a general design principle for creating and controlling EP's in…Soumya Kanti Pal, Rupak Majumder, Shamik Gupta·Aug 5, 2026SaveLearn
Preparation geometry and slow-sector routing in driven Kerr resonators: an operational spectral theory of LiouvilliansLiouvillian eigenvalues determine decay rates and oscillation frequencies, but not how the corresponding modes are excited, propagated, and detected in a chosen protocol. We develop an operational…Kilian Seibold·Aug 5, 2026SaveLearn
Observing the Quantum Compiler through Automatic Experiment Tracking for QiskitUnderstanding the effectiveness of quantum compilation techniques requires visibility into the entire transpilation process, not just the final circuit metrics. This demonstration presents an…Vlad Stirbu, Arianne Meijer van de Griend·Aug 5, 2026SaveLearn
Source-Aware Recovery and Security Bounds in Temporal-Mode Quantum CommunicationWe analyze a temporal-mode extension of the two-way LM05 quantum communication primitive, in which a message block is encoded into a fixed-weight binary occupation vector (the support) alongside…Ali Vahedi, Parsa Mahdavifar·Aug 5, 2026SaveLearn
Neutral Atom Quantum Computing: Principles, Routes, Progress, and ChallengesNeutral atom quantum computing utilizes laser-trapped neutral atoms as qubits and realizes quantum logic gate operations through Rydberg-state interactions. In recent years, it has become one of the…Junchao Wang, Zeyuan Wang, Lei Li et al.·Aug 5, 2026SaveLearn
Universal linear manipulation via routing and projective measurementsMultiport interferometers with N ports are basic devices in both classical and quantum photonics. Ideally, they implement a linear unitary transformation between the input and output electric field…Alessio Baldazzi, Sonia Mazzucchi, Lorenzo Pavesi·Aug 5, 2026SaveLearn
Quantum Bayes Correlated Equilibrium and the Comparison of Quantum Information Structures in GamesBergemann and Morris (2016) show that one information structure is more informative than another exactly when it induces a smaller set of Bayes correlated equilibrium outcomes in every game. We build…Furkan Sezer·Aug 5, 2026SaveLearn
Diffusive Speed Limits for U(1)-Covariant Quantum Error CorrectionFast preparation of quantum error-correcting codes is essential for scalable quantum memories, but geometric locality and U(1) charge conservation impose an unavoidable transport constraint. We…Jianqi Sheng·Aug 5, 2026SaveLearn
Sharp Continuity of Petz and Sandwiched Rényi Conditional EntropiesWe determine the sharp modulus of continuity, in trace distance, of the optimized Petz and sandwiched Rényi conditional entropies for every order α∈[12,1). If two bipartite states are within…Hao-Chung Cheng, Po-Chieh Liu·Aug 5, 2026SaveLearn
From Promise to Practice: Closing the Application Gap in Quantum ComputingQuantum computing is a deep technology whose progress cannot be driven effectively from one direction alone. While the field has developed a growing catalogue of mathematically grounded algorithmic…Nicole Holzmann·Aug 5, 2026SaveLearn
Complementary Quantum Correlations Are Universal for QubitsExtracting total correlations from a quantum system usually requires reconstructing its state, whereas many experiments access only a few measurement settings. A possible shortcut is to add the…Jinbo Wang, Qihang Wang, Kun Chen·Aug 5, 2026SaveLearn
Quantum-Limited Distance Estimation in Three-Dimensional Optical SuperresolutionQuantum superresolution reveals that the vanishing of separation sensitivity in conventional imaging below the Rayleigh limit does not necessarily indicate a fundamental loss of information in the…Junyan Li, Shengshi Pang·Aug 5, 2026SaveLearn
Universal Scaling of the Minimum Error Probability in Qualification of Quantum StatesQualification of quantum states judges which of two sets of quantum states an unknown state lies in, where the two sets are labeled by two distinct parameter regions. We formulate this problem as a…Zhaoyu Fei, Yaotian Li, Weicheng Huang et al.·Aug 5, 2026SaveLearn
Disentanglement in the macroscopic limitThe recently proposed spontaneous disentanglement hypothesis is formulated using a modified Schrödinger equation having an added nonlinear term. The hypothesis is motivated by some outstanding issues…Eyal Buks·Aug 5, 2026SaveLearn
Two-dimensional Toda--Arnoldi correspondence: Holomorphic Krylov geometry and counterdiabatic transportAlthough Arnoldi reduction of a generally non-Hermitian Hamiltonian yields an upper Hessenberg matrix rather than the tridiagonal form of Hermitian Lanczos theory, we show that a closed Toda sector…Urei Miura·Aug 5, 2026SaveLearn