Moment Optimization in the Navascués-Pironio-Acín HierarchyThe Navascués-Pironio-Acín (NPA) hierarchy provides a convergent sequence of semidefinite programming (SDP) relaxations for noncommutative polynomial optimisation, ubiquitous in quantum physics.…Francesco Flora, Losel Matos, Tim Heightman et al.·Jul 16, 2026SaveLearn
High-rate continuous-variable quantum key distribution coexisting with Tb/s coherent classical transmission in hollow-core fiberQuantum key distribution (QKD) can provide secret keys with security rooted in quantum mechanics, but operation alongside high-capacity classical traffic remains limited by the excess-noise budget of…Xitao Ji, Siyu Chen, Peng Li et al.·Jul 16, 2026SaveLearn
Electrons Hopping across a Molecular Network: Spectra and SymmetriesWe investigate interacting spinless electrons on finite molecular ring networks described by a tight-binding Hubbard Hamiltonian. The interplay between lattice geometry, Coulomb interactions and…Ludwig Schulz, Max Best, Carsten Henkel·Jul 16, 2026SaveLearn
Tuning the universality class of a quantum process by TrotterizationWe numerically analyze a discretized version of the quantum contact process, a non-equilibrium model having a competition between a coherent infection process and a dissipative recovery process.…Robin Prampain dit Boulan, Jerom Jebai, Hendrik Weimer·Jul 16, 2026SaveLearn
Worst-Case Quantum Algorithm for Optimal Polynomial Intersection Beyond Decoded Quantum InterferometryThe Optimal Polynomial Intersection (OPI) problem asks us to find a low-degree polynomial over a finite field whose values lie in prescribed subsets on as many given inputs as possible. Decoded…Shuji Horinaga, Takashi Yamakawa·Jul 16, 2026SaveLearn
Emergence and Recovery of (logical) Kochen-Specker Contextuality via Hamilton ExtensionLogical Kochen-Specker (KS) contextuality is widely regarded as an intrinsic property of specially constructed measurement configurations. We show instead that it can emerge from KS-colorable vector…Jayashree Karmakar, Biswadeep Chatterjee, Rafiuddin Gazi et al.·Jul 16, 2026SaveLearn
Adaptive Entanglement Management in Quantum Multi-Core ArchitecturesScalable quantum computing architectures increasingly rely on multi-core designs, where qubits are distributed across multiple processing cores interconnected through a quantum Network-on-Chip (NoC).…Rajeswari Suance P S, Anubhab Dutta, Ruchika Gupta et al.·Jul 16, 2026SaveLearn
Exact No Signaling in Time without Temporal ClassicalityNo signaling in time (NSIT) has often been treated as the clean operational remnant of noninvasive measurability. If an earlier measurement leaves every later marginal unchanged, the temporal process…Minsu Kim, Jeongho Bang, Han Seb Moon·Jul 16, 2026SaveLearn
No Finite NPA Level Characterizes the Complete Quantum Set in the Simplest Bell ScenarioThe Navascués--Pironio--Acín (NPA) hierarchy gives the standard semidefinite outer approximations to quantum behaviors. Whether any finite level can already equal the quantum set has remained…Anubhav Chaturvedi·Jul 16, 2026SaveLearn
Structure-Aware Variational State Preparation for Quantum Basket Option PricingBasket option pricing often relies on Monte Carlo estimation, for which quantum amplitude estimation (QAE) provides a quadratic speed-up. However, the practical benefit of QAE can be limited by the…Dongwoo Kim, Zhenyu Cui, Daniel K. Park et al.·Jul 16, 2026SaveLearn
Geometric Mode Steering of the Quantum Mpemba EffectThe slowest Liouvillian mode often bottlenecks the relaxation of an open quantum system to its steady state. Standard strategies circumvent this bottleneck by selecting special initial states or…Yingying Hong, Longxing Xu, Weiwei Zhang et al.·Jul 16, 2026SaveLearn
Syndrome-as-Header: A Quantum Label-Switching Architecture via Uncorrectable Error InjectionScaling quantum networks beyond point-to-point links requires packet forwarding that can tolerate control-plane timing uncertainty. Existing optical-burst switching (OBS) and quantum-wrapper-based…IlKwon Sohn, Ju-Bong Kim, Kwangil Bae et al.·Jul 16, 2026SaveLearn
A generalized variational quantum linear solver on photonic platformBased on a photonic computing platform, we experimentally validate a generalized variational quantum linear solver (VQLS) by systematically solving four-dimensional linear equation systems across…Kang Gao, Zhao-An Wang, Ze-Guo Wang et al.·Jul 16, 2026SaveLearn
Perturbation Analysis of Maximal Quantum LeakageMaximal quantum leakage (MQL) is a worst-case information leakage measure that quantifies an adversary's inference advantage gained from accessing quantum encoding of classical data with…Zijia Zhao, Shuixin Xiao, Farhad Farokhi·Jul 16, 2026SaveLearn
Quantum correlations of tripartite mixed states in the black hole quantum atmosphereWe investigate quantum state texture, genuine multipartite entanglement, and tripartite nonlocality of a tripartite mixed state in the black hole quantum atmosphere. By introducing the Hartle-Hawking…Anqi Zhang, Yanze Zheng, Xiaofen Huang et al.·Jul 16, 2026SaveLearn
Improving Dynamical Decoupling for Trapped-Ion QCCD Quantum ComputersWe examine the impact of scheduling errors on dynamical decoupling (DD) in trapped-ion quantum charge-coupled devices (QCCDs) and develop better strategies for reducing memory errors. In the QCCD…William M. Watkins, Leigh M. Norris, Ross Hutson et al.·Jul 16, 2026SaveLearn
Imaginarity as a Resource within Quantum Coherence: Geometric Decomposition and Operational ConversionWe establish a rigorous framework that identifies imaginarity as a fundamental resource inherent in quantum coherence. By means of a geometric decomposition, we partition coherence into distinct…Meng-Li Guo, Nannan Guan, Bo Li et al.·Jul 16, 2026SaveLearn
Inherent interpretability provides inherent value in quantum machine learningThe field of quantum machine learning (QML) evolved to value models believed to most directly rival those providing utility in classical ML, namely large-scale neural networks. Although more…Kaitlin Gili, Zachary P. Bradshaw·Jul 16, 2026SaveLearn
Basis-Independent Coherence Dynamics of Tripartite States under Pure DephasingQuantum coherence is a fundamental quantum resource whose preservation under environmental interactions is essential for quantum information processing. While most studies have focused on…Sovik Roy, Abhijit Mandal·Jul 16, 2026SaveLearn
Separate Control of Transient Leakage Exposure and Endpoint Leakage in Fast Transmon GatesLeakage to noncomputational states limits the speed of single-qubit gates in weakly anharmonic transmons. Conventional pulse-shaping methods, including derivative removal by adiabatic gate (DRAG),…Haoran Yang, Fudong Liu, Weilong Wang et al.·Jul 16, 2026SaveLearn
Quantum orientation, Noether structure, composition of systems and operationsIn this paper we argue that, in addition to the statistical structure of quantum theory, another structure, referred to here as the ``Noether structure," is necessary to describe the composition…Heinz-Jürgen Schmidt·Jul 16, 2026SaveLearn
A regularization method for quantum neural networks using data symmetryLeveraging data symmetries has recently become a key strategy in quantum neural networks (QNNs) to improve training efficiency. In this study, we propose a symmetry-informed regularization method for…Hiroshi Ohno·Jul 16, 2026SaveLearn
Bockstein braiding statisticsBraiding phenomena, from the charge-flux Aharonov-Bohm effect to anyonic statistics in fractional quantum Hall systems, are paradigmatic manifestations of topology in quantum physics. Ordinary mutual…Po-Shen Hsin, Yu-An Chen·Jul 16, 2026SaveLearn
Quantum nonlocal correlations of anomalous weak valuesViolations of Bell inequalities are a hallmark of entanglement, with only entangled states capable of exceeding classical bounds in standard Bell tests. Here we analyze anomalous weak values of the…Ron Cohen, Avshalom C. Elitzur, Eliahu Cohen·Jul 16, 2026SaveLearn
Heralded ultrafast generation of macroscopic quantum states in matter with bright squeezed vacuum lightWe show that bright squeezed vacuum light, combined with a single-shot quadrature measurement of the post-interaction light, enables the ultrafast generation of macroscopic quantum states in matter.…Shohei Imai·Jul 16, 2026SaveLearn