Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Asymmetry-aided measurement-based quantum repeaters and distributed quantum computing with a decoder-free client
Wooyeong Song, Sungyeon Kook, Wonhyuk Lee +1 more·Jul 13, 2026
Distributed quantum computation needs to move logical qubits across lossy optical links, yet this transmission layer is usually designed separately from the computation it serves. We treat the two together by recognizing that a measurement-based quan...
Which Classicality? Incidence, Simplex, and Product-Rule Tests in Finite Quantum Logics
Karl Svozil·Jul 13, 2026
Finite quantum-logical constructions can appear classical or nonclassical depending on which structure is retained. We distinguish incidence tests based on valuations, colorings, and partition representations; simplex-embedding tests for specified pr...
Quantum Multiscale Modeling: A Hierarchy of Algorithms for Complex Chemical Systems
Seenivasan Hariharan, Kareljan Schoutens, Sachin Kinge +1 more·Jul 13, 2026
Multiscale modeling of complex chemical systems requires algorithms that operate coherently across electronic, atomistic, mesoscopic, and continuum scales. While quantum algorithms have been proposed for each regime, no systematic framework exists to...
Distributed Semantics for Distributed Quantum Computing
Jun Inoue·Jul 13, 2026
We present a quantum process calculus that can split the system state along process boundaries and follow the evolution of each process in isolation, without losing information about the joint state-a property we call spatial compositionality. Compos...
Unique temporal scaling dimension for quantum criticality in open systems weakly coupled to environment
Fan Zhong·Jul 13, 2026
Probing, understanding, predicting, and controlling the real-time dynamics of quantum phase transitions in open systems are of pivotal importance to modern condensed matter physics, statistical physics, and quantum computing, among others. Here it is...
Dynamics of two interacting dipolar two-level systems in a multi-mode electromagnetic cavity: sudden death and revival of the entanglement within the Born-Markov approximation
Loann Quien, Naomichi Hatano·Jul 13, 2026
Interacting dipolar two-level systems form a special class of qubits that interact with a cavity in a particular way. We first prove that the Markovian dynamics of one 1/2-spin in interaction with a quantised magnetic field from a multi-mode cavity a...
Lie-Algebraic Subspace Quantization for Zero-Shot Quantum Learning and Barren-Plateau Mitigation
Yuhan Yao, Yoshihiko Hasegawa·Jul 13, 2026
The barren plateau phenomenon severely limits the scalability of parameterized quantum circuits (PQCs). We present an analytical framework for zero-shot classical-to-quantum parameter transfer and manifold-based model merging without quantum-side opt...
Decoherence of a quantum magneto-oscillator: Effect of field-bath interaction
Koushik Mandal, Suraka Bhattacharjee, Supurna Sinha·Jul 13, 2026
We investigate the quantum dissipative dynamics of a charged magneto-oscillator(CMO) coupled to a heat bath of harmonic oscillators in the presence of an additional field-bath interaction. The problem is formulated within the framework of the general...
Molecular Dynamics-Derived Coloured Noise Mediates Anderson Localisation and Environment-Assisted Transport of Tryptophan Excitons in Tubulin
Chen Xin·Jul 13, 2026
The tryptophan residues in tubulin $αβ$-dimers form an ordered aromatic network that has been proposed to support quantum exciton transport even under physiological environmental noise. Existing studies of this system mostly assume white-noise dephas...
When cheap gradients fail: the measurement cost of attacking quantum classifiers
Bacui Li, Chandra Thapa, Tansu Alpcan +1 more·Jul 13, 2026
Adversarial perturbations threaten machine learning classifiers, including variational quantum classifiers. We show that finite quantum measurement statistics (shot noise) act as a built-in defense against gradient-based test-time attacks whose cost ...
Spectroscopy of low-lying valley states in hot Si/SiGe quantum dots
Connor Nasseraddin, Heun Mo Yoo, Tanner M. Janda +1 more·Jul 13, 2026
The presence of low-lying valley states in Si may hinder the development of large-scale spin-based quantum processors. Rapid prototyping of novel Si/SiGe heterostructures and gate stacks will be central to identifying pathways that increase the valle...
Many-Body Physics with Rydberg Atoms: Quantum Simulation and Non-equilibrium Dynamics
Zhengyang Bai, Cheng Chen, Fan Yang +1 more·Jul 13, 2026
Rydberg atoms, characterized by their strong and long-range dipole-dipole interactions, provide a versatile platform for exploring intriguing collective and many-body effects. Recently, the experimental realization of these effects in dense ensembles...
Overcoming Fourier Locking in Quantum Data Re-uploading Classifiers via Spectral Homotopy
Spencer Topel·Jul 13, 2026
Data re-uploading parameterized quantum circuits (DRU-PQCs) are universal function approximators, yet their expressivity produces oscillatory, non-convex loss landscapes that resist gradient-based optimization. We show that the primary optimization b...
Layer-Resolved Topological Metals in the Bilayer Lieb Lattice
Mengjie Yang, S Rahul, Giandomenico Palumbo·Jul 13, 2026
We identify a two-dimensional time-reversal-invariant topological metallic phase on a bilayer Lieb lattice, characterized by a quantized layer--resolved pseudo-spin Chern number. Without the orbital-angular-momentum-dependent (OAM-dependent) coupling...
Ferroelectric--Superconducting Interaction in Epitaxial YBa2Cu3O7-δ/BaTiO3 Films
Louis Oppong-Antwi, David L. Cortie, Qi Zhang +4 more·Jul 13, 2026
Microscopic theories predict that the critical temperature of a superconducting layer can be strongly modified in proximity to a ferroelectric; however, experimental evidence is lacking. We report on BaTiO3 (BTO)/YBa2Cu3O7-δ (YBCO) heterostructures g...
Non-Abelian holonomic transformations in digitally coupled acoustic waveguides guided by the global adiabatic criterion
Jin-Kang Guo, Jia Li, Jin-Lei Wu +1 more·Jul 13, 2026
An acoustic platform is validated for implementing compact non-Abelian holonomic transformations (NHTs) guided by a global adiabatic criterion (GAC). A tripod model is mapped onto a digitally coupled four-waveguide structure, where designed coupling ...
Analytical mobility edge in nonreciprocal quasiperiodic lattices with next-nearest-neighbor hopping
Wenmin Wang, Xiaosen Yang, Xianqi Tong·Jul 13, 2026
We investigate localization transitions and spectral topology in a one-dimensional non-Hermitian generalization of the Aubry-André model in which both the nearest-neighbor and the next-nearest-neighbor hopping amplitudes are nonreciprocal. By extendi...
The quantum coherence as a phase property of the wave function
Ivan Georgiev Koprinkov·Jul 12, 2026
The quantum coherence as a phase property of the most fundamental quantum mechanical entity, the wave function, is explained for the first time. Phase-sensitive nonadiabatic dressed states, arising from the interaction of a quantum system and a coher...
$p$-Form Gauge Dynamics and Digital Quantum Simulation -- Flux and Cosmological Constant Neutralization
Soo-Jong Rey·Jul 12, 2026
I develop a Hamiltonian framework for ${\mathbb Z}_k$ $p$-form gauge fields on arbitrary oriented cell complexes in arbitrary dimensions. Gauge qudits are defined by $p$-cells, charged boundary qudits by $(p-1)$-cells, Gauss-law generators by boundar...
Randomized Quantum Optimal Control
Leeseok Kim, Francisco Riberi, Kevin Baca +1 more·Jul 12, 2026
Quantum optimal control (QOC) aims to find control functions that optimally steer a quantum system toward a target operation. We introduce a \emph{randomized} QOC framework where optimization is carried over an ensemble of control functions and their...