Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Geometry versus excitation sector in the decoherence of asymmetric $N$-qubit $W$ states
Sougata Bhattacharyya, Sovik Roy, Fatih Ozaydin·Aug 13, 2026
We investigate how network geometry and excitation sector separately control pairwise entanglement decay in asymmetric multipartite $W$ states. To disentangle these effects, we introduce an analytically tractable $N$-qubit generalization of the asymm...
Exponential multi-graylevel computational-weighted dithering for high-quality binarized Fourier single-pixel imaging
Qigao Zhu, Haojia Jiang, Guan Wang +4 more·Aug 13, 2026
Binarized Fourier single-pixel imaging (FSI) takes full advantage of the high modulation speed of digital micromirror devices by applying Floyd-Steinberg spatial dithering to binarize grayscale Fourier patterns. However, the use of the spatial dither...
Time-ordered free energy in correlated quantum systems: An agentic approach
Ruo Cheng Huang, Isha Singh Le Xue, Yuxuan Qu +3 more·Aug 13, 2026
How much work can an agent extract from a temporal sequence of quantum states when it can only operate online under causal constraints---deciding which energy extraction method to use with knowledge of what it has observed before? Here, we study this...
Encoding Circuit Satisfiability in Rydberg Atom Arrays
Haotian Ji, Zhangjie Qin, Zheng An +6 more·Aug 13, 2026
Rydberg atom arrays natively encode the maximum-weight independent set (MWIS) problem through the blockade mechanism, so the Boolean circuit satisfiability problem (Circuit-SAT) can be brought onto the platform once it is reduced to MWIS. The convent...
Parity Floors in Quantum Denoisers: A Closed-Form Benchmark for Fixed-Map Denoising Networks
Jaeuk Kim·Aug 13, 2026
Fixed quantum feature maps are increasingly inserted into diffusion denoisers, but standard image benchmarks do not reveal which structural constraint limits them. We introduce CoupledPhaseTexture, a torus-diffusion benchmark with analytic heat-kerne...
Proliferation Transitions for Non-Abelian Anyons
Sakura Schafer-Nameki, Yunqin Zheng, Andrea Antinucci·Aug 12, 2026
We construct phase transitions that proliferate condensable anyons in general 2+1d topological orders, including non-abelian ones. The central tool that provides a systematic approach to this question is the Symmetry Topological Field Theory (SymTFT)...
Hamilton-Zero: A Neural Tensor-Network Foundation Model for Ground States of Arbitrary Quadratic Qubit Hamiltonians
Timothy Heightman, Elena Orlova, Philip Mantrov +1 more·Aug 12, 2026
A central promise of useful quantum advantage is the ability to compute ground states of Hamiltonian systems beyond the reach of classical simulation methods. Here we demonstrate that this problem can be effectively amortized across an arbitrary and ...
The optimization landscape of peaked-circuit generation
Ilyes Jamoussi·Aug 12, 2026
Peaked circuits are random quantum circuits whose measurement returns one bitstring far more often than chance. The probability of that string is the peakedness, and a verifier who knows the string checks the device in a few shots. Peaked circuits ar...
A 12-CNOT Double Qubit Excitation Gate
Irfansha Shaik·Aug 12, 2026
Effective implementation of high-level quantum gates is essential for practical quantum computing. In this work, we presented, to the best of our knowledge, the first reported 12-CNOT decomposition of the double qubit excitation operator. We compared...
Observable dependence and rate identifiability in false-vacuum decay of the quantum Ising chain
Boliang Yu, Ruixin Zhou, Hang Su·Aug 11, 2026
Extracting a thermodynamic nucleation rate from finite-time quantum dynamics requires separating observable decay from estimator and finite-size validity. We develop a multilevel identification framework for real-time tensor-network simulations of fa...
How many labels can a biological oscillator carry? A quality-factor screen for proposed information carriers
Eran Kopel·Aug 11, 2026
How many distinguishable labels can a biological oscillator carry? Proposals invoking collective vibrational modes, endogenous electromagnetic fields, microtubule excitations and oscillatory phase codes are each debated on grounds particular to thems...
Tensor network methods for non-perturbative dynamics of open quantum systems
Thibaut Lacroix, Adam Burgess, Nicola Lorenzoni +11 more·Aug 10, 2026
The description of open quantum system dynamics beyond the perturbative treatment (usually associated with Markovian master equations) is a computationally challenging task due to the unfavorable exponential scaling of memory kernels. Developed over ...
Quantized Stabilizer-Rényi Boundary Response across Fermionic SPT Transitions
M. A. Rajabpour·Aug 10, 2026
Open boundaries host symmetry-protected Majorana modes, yet their imprint on the stabilizer Rényi entropy is obscured by a nonuniversal volume law. At Rényi index $α=1/2$, we isolate a bulk-subtracted boundary response in free-fermion BDI chains usin...
A Design Space Study of Density Matrix Parameterizations for Diffusion-Based Quantum State Tomography
Shuangu Chang·Aug 10, 2026
Diffusion-based quantum state tomography (QST) has shown promising results, but all existing methods implicitly adopt a single parameterization (typically Cholesky) without systematic evaluation. We present the first design space study of density mat...
Hybrid spatial-temporal graph neural network Powered NDTs:Towards Next-Gen Smart Infrastructure Twins
John Sengendo, Fabrizio Granelli·Aug 8, 2026
Network Digital Twins (NDTs) enable proactive network management and optimization by predicting system behavior before control actions are applied to live infrastructures, supporting critical operations in Internet Service Provider (ISP) networks and...
Theory of Measurement-Altered Criticality
Kabir Khanna, Sara Murciano, Romain Vasseur·Aug 5, 2026
Local measurements can alter long-range correlations in gapless quantum matter. We propose a theory of weakly-monitored Tomonaga-Luttinger liquids, a broad class of quantum critical states in one dimension. In order to address the intrinsic randomnes...
Perfect Games in Dimension-Bounded Communication
Emmanuel Zambrini Cruzeiro·Aug 5, 2026
Perfect 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 cannot. We establish three structural results for su...
Two-dimensional Toda--Arnoldi correspondence: Holomorphic Krylov geometry and counterdiabatic transport
Urei Miura·Aug 5, 2026
Although 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 survives in its diagonal and subdiagonal coefficient...
Scale-CDA: A Scalable Aftermarket Platform to Democratize Cooperative Driving Automation in Production Cars
Hao Zhou, Shengming Yuan, Yuhang Wang +2 more·Aug 4, 2026
Scaling cooperative driving automation (CDA) to production passenger vehicles requires an affordable retrofit platform that can accommodate heterogeneous OEM Controller Area Network (CAN) signals and advanced driver-assistance system (ADAS) commands....
Local Uniqueness of the Born Rule on Categories with Complex-Weighted Morphisms
Tayfun Ustun·Aug 4, 2026
I prove a local uniqueness theorem for the Born rule in the setting of quiver-generated categories equipped with complex morphism weights and path-amplitude probability functionals. Given (i) non-negativity, (ii) invariance of bounded total degree, (...