Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Effect of initial intrasystem entanglement on entropy growth in generalized Jaynes-Cummings models
Daria Gaidukevich·Feb 4, 2026
We investigate how initial intrasystem entanglement influences the entropy generated in atomic systems interacting with a photonic environment in several generalizations of the Jaynes-Cummings model with two or more subsystems. Since the initial enta...
Squeezing-Enhanced Rotational Doppler Metrology
Javier Navarro, Mateo Casariego, Gabriel Molina-Terriza +2 more·Feb 4, 2026
A rotating surface can induce a frequency shift in incident light by changing its angular momentum, a phenomenon known as the rotational Doppler effect. This effect provides a means to estimate the angular velocity of the rotating surface. In this wo...
Optimal Control Design Guided by Adam Algorithm and LSTM-Predicted Open Quantum System Dynamics
JunDong Zhong, ZhaoMing Wang·Feb 4, 2026
The realization of high-fidelity quantum control is crucial for quantum information processing, particularly in noisy environments where control strategies must simultaneously achieve precise manipulation and effective noise suppression. Conventional...
SPEAR: An Engineering Case Study of Multi-Agent Coordination for Smart Contract Auditing
Arnab Mallick, Indraveni Chebolu, Harmesh Rana +1 more·Feb 4, 2026
We present SPEAR, a multi-agent coordination framework for smart contract auditing that applies established MAS patterns in a realistic security analysis workflow. SPEAR models auditing as a coordinated mission carried out by specialized agents: a Pl...
Low resource entanglement classification from neural network interpretability
A. García-Velo, R. Puebla, Y. Ban +2 more·Feb 4, 2026
Entanglement is a central resource in quantum information and quantum technologies, yet its characterization remains challenging due to both theoretical complexity and measurement requirements. Machine learning has emerged as a promising alternative,...
Vistas of Algebraic Probability: Quantum Computation and Information
Antonio Falcó, Hermann G. Matthies·Feb 4, 2026
Kolmogorov's foundation of probability takes measure spaces, $σ$-algebras, and probability measures as basic objects. It is, however, widely recognized that this classical framework is inadequate for random phenomena involving quantum effects, and mo...
Escape of quantum information across an analogue black hole horizon
Zhilong Liu, Wentao Liu, Zehua Tian +1 more·Feb 4, 2026
The complete evaporation of black holes, as a natural endpoint of Hawking radiation, gives rise to the black hole information paradox, which fundamentally challenges the principles of unitarity and information conservation in quantum mechanics. Altho...
The Dynamics of Attention across Automated and Manual Driving Modes: A Driving Simulation Study
Yuan Cai, Mustafa Demir, Farzan Sasangohar +1 more·Feb 4, 2026
This study aims to explore the dynamics of driver attention to various zones, including the road, the central mirror, the embedded Human-Machine Interface (HMI), and the speedometer, across different driving modes in AVs. The integration of autonomou...
Contextuality from Single-State Ontological Models: An Information-Theoretic No-Go Theorem
Song-Ju Kim·Feb 3, 2026
Contextuality is a central feature of quantum theory, traditionally understood as the impossibility of reproducing quantum measurement statistics using noncontextual ontological models. We consider classical ontological models constrained to reuse a ...
Accelerating qubit reset through the Mpemba effect
Théo Lejeune, Miha Papič, John Goold +3 more·Feb 3, 2026
Passive qubit reset is a key primitive for quantum information processing, whereby qubits are initialized by allowing them to relax to their ground state through natural dissipation, without the need for active control or feedback. However, passive r...
Universal Characterization of Quantum Vacuum Measurement Engines
Robert Czupryniak, Bibek Bhandari, Paolo Andrea Erdman +1 more·Feb 3, 2026
Quantum measurements can inject energy into quantum systems, enabling engines whose operation is powered entirely by measurements. We develop a general theory of quantum vacuum measurement engines by introducing the quantum vacuum bending function (Q...
Mind the Gap: Anti-Critical Quantum Metrology
George Mihailescu, Karol Gietka·Feb 3, 2026
Critical quantum metrology exploits the dramatic growth of the quantum Fisher information near quantum phase transitions to enhance the precision of parameter estimation. This enhancement is commonly associated with a closing energy gap, which causes...
Enhancing Quantum Diffusion Models for Complex Image Generation
Jeongbin Jo, Santanam Wishal, Shah Md Khalil Ullah +2 more·Feb 3, 2026
Quantum generative models offer a novel approach to exploring high-dimensional Hilbert spaces but face significant challenges in scalability and expressibility when applied to multi-modal distributions. In this study, we explore a Hybrid Quantum-Clas...
Even More Efficient Soft-Output Decoding with Extra-Cluster Growth and Early Stopping
Kaito Kishi, Riki Toshio, Jun Fujisaki +3 more·Feb 3, 2026
In fault-tolerant quantum computing, soft outputs from real-time decoders play a crucial role in improving decoding accuracy, post-selecting magic states, and accelerating lattice surgery. A recent paper by Meister et al. [arXiv:2405.07433 (2024)] pr...
Quantum spin-heat engine with trapped ions
André R. R. Carvalho, Liam J. McClelland, Erik W. Streed +1 more·Feb 3, 2026
We propose an ion-trap implementation of the Vaccaro, Barnett and Wright et al. spin-heat engine (SHE); a hypothetical engine that operates between energy and spin thermal reservoirs rather than two energy reservoirs. The SHE operates in two steps: f...
Quantum Information Flow in Microtubule Tryptophan Networks
Lea Gassab, Onur Pusuluk, Travis J. A. Craddock·Feb 2, 2026
Networks of aromatic amino acid residues within microtubules, particularly those formed by tryptophan, may serve as pathways for optical information flow. Ultraviolet excitation dynamics in these networks are typically modeled with effective non-Herm...
Inducing, and enhancing, many-body quantum chaos by continuous monitoring
Xianlong Liu, Jie-ping Zheng, Antonio M. García-García·Feb 2, 2026
It is intuitively expected, and supported by earlier studies, that many-body quantum chaos is suppressed, or even destroyed, by dissipative effects induced by continuous monitoring. We show here that this is not always the case. For this purpose, we ...
Dynamic Simulations of Strongly Coupled Spin Ensembles for Inferring Nature of Electronic Correlations from Nuclear Magnetic Resonance
Charles Snider, Stephen Carr, D. E. Feldman +2 more·Feb 2, 2026
We develop an efficient package for the simulation of nuclear magnetic resonance spin echo experiments to study the effects of strong electronic spin correlations on the dynamics of the nuclear spin ensemble. A mean-field model is used to study corre...
Quantum Tomography of Fermion Pairs in $e^+e^-$ Collisions: Longitudinal Beam Polarization Effects
Yu-Chen Guo, Tao Han, Matthew Low +1 more·Feb 2, 2026
We present a quantum tomography study of fermion pair production at future $e^+e^-$ colliders, emphasizing how longitudinal beam polarization controls the two-qubit spin density matrix. We study the processes $e^+ e^- \to t\bar{t},\ e^+e^-\to μ^+μ^-$...
Energy-Transfer-Enhanced Emission and Quantum Sensing of VB- Defects in hBN-PbI2 Heterostructures
Eveline Mayner, Yaroslav Zhumagulov, Cristian de Giorgio +6 more·Feb 2, 2026
Spin defects in two-dimensional materials hold significant potential for quantum information technologies and sensing applications. The negatively charged boron vacancy (VB-) in hexagonal boron nitride (hBN) has attracted considerable attention as a ...