Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Worst-Case Quantum Algorithm for Optimal Polynomial Intersection Beyond Decoded Quantum Interferometry
Shuji Horinaga, Takashi Yamakawa·Jul 16, 2026
The 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 quantum interferometry (DQI) gives a quantum algorithm f...
Emergence and Recovery of (logical) Kochen-Specker Contextuality via Hamilton Extension
Jayashree Karmakar, Biswadeep Chatterjee, Rafiuddin Gazi +5 more·Jul 16, 2026
Logical 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 sets through a constructive procedure we call the H...
Adaptive Entanglement Management in Quantum Multi-Core Architectures
Rajeswari Suance P S, Anubhab Dutta, Ruchika Gupta +1 more·Jul 16, 2026
Scalable 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). In such systems, inter-core communication is typic...
Exact No Signaling in Time without Temporal Classicality
Minsu Kim, Jeongho Bang, Han Seb Moon·Jul 16, 2026
No 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 appears classical. We show that this inference is ...
No Finite NPA Level Characterizes the Complete Quantum Set in the Simplest Bell Scenario
Anubhav Chaturvedi·Jul 16, 2026
The Navascués--Pironio--Acín (NPA) hierarchy gives the standard semidefinite outer approximations to quantum behaviors. Whether \emph{any} finite level can already equal the quantum set has remained open even in the bipartite scenario with two binary...
Phase coherence control of a programmable high-Tc superconductor created by light
Viktoria Yursa, Igor Vaskivskyi, Anze Mraz +7 more·Jul 16, 2026
The quest for superconductivity created by light extends for more than half a century, yet direct evidence of a true zero-resistance state -whose macroscopic quantum phase coherence is both created and controlled by light -- has remained elusive. Her...
Spin-Resolved Decay of Axion-Like Particles into Electron--Positron Pairs in Strong Electromagnetic Fields
Xiaodan Mao, Yue-Yue Chen, Pei-Lun He·Jul 16, 2026
We investigate spin-resolved decay of an axion-like particle (ALP) into an electron--positron pair in an intense laser field. Using the Baier--Katkov quasiclassical operator formalism and the locally constant field approximation, we derive a compact ...
Right Device, Right Place: Variation-Aware Placement and Design Optimization for Robust Photonic Lattice-Filter Demultiplexers
Zahra Ghanaatian, Edwin K. P. Chong, Mahdi Nikdast·Jul 16, 2026
We propose a Bayesian co-optimization framework for robust integrated photonic lattice-filter demultiplexers, jointly optimizing device placement and design parameters under fabrication and thermal variations. Results show 75% better spectral matchin...
Structure-Aware Variational State Preparation for Quantum Basket Option Pricing
Dongwoo Kim, Zhenyu Cui, Daniel K. Park +1 more·Jul 16, 2026
Basket 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 depth of the state-preparation circuit. We propose a...
Physical Reservoir Signal Acquisition for Sub-Nyquist Waveform Reconstruction
Yuito Ito, Anas Skalli, Tetsuya Asai +1 more·Jul 16, 2026
Physical reservoir computing has traditionally exploited the dynamics of physical systems for computation, enabling tasks such as inference, classification, and prediction. Here, we introduce a fundamentally different paradigm for exploiting physical...
Geometric Mode Steering of the Quantum Mpemba Effect
Yingying Hong, Longxing Xu, Weiwei Zhang +2 more·Jul 16, 2026
The 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 engineering the dissipator. Here we show that neither i...
Syndrome-as-Header: A Quantum Label-Switching Architecture via Uncorrectable Error Injection
IlKwon Sohn, Ju-Bong Kim, Kwangil Bae +2 more·Jul 16, 2026
Scaling 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 packet switching (QW) rely on external classical head...
A generalized variational quantum linear solver on photonic platform
Kang Gao, Zhao-An Wang, Ze-Guo Wang +3 more·Jul 16, 2026
Based on a photonic computing platform, we experimentally validate a generalized variational quantum linear solver (VQLS) by systematically solving four-dimensional linear equation systems across different fields. In the complex field, in addition to...
Perturbation Analysis of Maximal Quantum Leakage
Zijia Zhao, Shuixin Xiao, Farhad Farokhi·Jul 16, 2026
Maximal 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 arbitrary measurements. While MQL admits an exact characterizat...
Quantum correlations of tripartite mixed states in the black hole quantum atmosphere
Anqi Zhang, Yanze Zheng, Xiaofen Huang +1 more·Jul 16, 2026
We 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 local temperature into the Bogoliubov coefficients...
Improving Dynamical Decoupling for Trapped-Ion QCCD Quantum Computers
William M. Watkins, Leigh M. Norris, Ross Hutson +3 more·Jul 16, 2026
We 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 architecture, qubit transport and control introduce st...
Global drivers and barriers to the public acceptance of autonomous vehicles: Evidence from 17 countries
Antonios Saravanos·Jul 16, 2026
This study investigated the public acceptance of Society of Automotive Engineers Level 3 conditionally automated cars, which can self-drive under certain specified conditions but require the human driver to remain ready to resume control when request...
Imaginarity as a Resource within Quantum Coherence: Geometric Decomposition and Operational Conversion
Meng-Li Guo, Nannan Guan, Bo Li +2 more·Jul 16, 2026
We 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 imaginarity and residual components, thereby revealing ...
Efficient quantum algorithm for Heisenberg spin systems
Sergey Bravyi, David Gosset, Yinchen Liu +1 more·Jul 15, 2026
We consider a broad family of Heisenberg-type quantum spin systems that were studied by Suzuki and Fisher in 1971. This family includes, for example, the Heisenberg antiferromagnet on any bipartite graph. The ground and Gibbs states of these models a...
Unified Uncertainty Quantification Framework Bridging Noisy Quantum Backends Across Variational Quantum Algorithms and Quantum Signal Processing
Priyabrata Senapati, Vibin Abraham, Qiang Guan +1 more·Jul 15, 2026
We present an uncertainty quantification (UQ) framework for application level benchmarking and characterization of noisy quantum backends. The framework compares two workload classes under one statistical pipeline: noisy intermediate scale quantum (N...