Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Boosting Gravity-Induced Entanglement through Parametric Resonance
Yuka Shiomatsu, Youka Kaku, Akira Matsumura +1 more·Nov 12, 2025
Establishing quantum gravity theory remains one of the major challenges in modern physics, as the lack of experimental evidence makes it difficult to explore. In response to this challenge, proposals to test quantum entanglement induced by Newtonian ...
Enhanced spectral range of strain-induced tuning of quantum dots in circular Bragg grating cavities
Ivan Gamov, Matthias Sauter, Samuel Huber +5 more·Nov 12, 2025
Tunable sources of entangled and single photons are essential for implementing entanglement-based quantum information protocols, as quantum teleportation and entanglement swapping depend on photon indistinguishability. Tunable devices are fabricated ...
Fractal structure of multipartite entanglement in monitored quantum circuits
Vaibhav Sharma, Erich J Mueller·Nov 11, 2025
We analyze the distribution of multipartite entanglement in states produced in a one-dimensional random monitored quantum circuit where local Clifford unitaries are interspersed with single-site measurements performed with a probability $p$. This cir...
Dynamical Chaos in a Dissipative Driven Quantum Soft Impact Oscillator
Titir Mukherjee, Arnab Acharya, Soumitro Banerjee +1 more·Nov 11, 2025
Dynamical chaos in a periodically driven, dissipative soft impact oscillator is investigated in the quantum regime using the complex-number quantum Langevin equation (c-number QLE). The averaged system dynamics are analyzed through a comprehensive su...
A Compact Dual-Beam Zeeman Slower for High-Flux Cold Atoms
Chen Chen, Kejun Liu, Dezhou Deng +6 more·Nov 11, 2025
We present a compact design of dual-beam Zeeman slower optimized for efficient production of cold atom applications. Traditional single-beam configurations face challenges from substantial residual atomic flux impacting downstream optical windows, re...
Coherence in the Leak and Storage Kurtosis control Ergotropy in Quantum Batteries
Bitap Raj Thakuria, Trishna Kalita, Manash Jyoti Sarmah +1 more·Nov 11, 2025
We introduce a cavity-coupled finite quantum system which can act as a quantum battery by harnessing noise induced coherences. We apply the methodology of full counting statistics to capture higher-order fluctuations of quanta exchange in the storage...
On the role of induced electric field in the time-dependent Aharonov-Bohm effect
Masashi Wakamatsu·Nov 11, 2025
Whether the time-dependent Aharonov-Bohm (AB) effect even exists or not has been the subject of long-standing debate. There are two factors complicating the problem. First, in the closed spacetime line integral of the vector potential that is thought...
Multipartite steering verification with imprecise measurements
Zeyang Lu, Chan Li, Gang Wang +1 more·Nov 11, 2025
Quantum steering is a fundamental quantum correlation that plays a pivotal role in quantum technologies, but its verification crucially relies on precise measurements -- an assumption often undermined by practical imperfections. Here, we investigate ...
Dual Magnetic and Electric Dipole Symmetry: Pseudo Angular Momentum in Parity Space and the Electric Landé $g$-Factor
Michael E. Tobar·Nov 10, 2025
EDMs probe fundamental symmetries and underpin BSM searches. We give a symmetry-based description, analogous to the Zeeman effect, that puts magnetic and electric dipoles on equal footing under EM duality. In hydrogen, $\vec B$ (pseudovector) couples...
Magnon-Squeezing-Induced Nonreciprocal Quantum Coherence in a Cavity Magnomechanical System
Abdelkader Hidki, Amjad Sohail, Tesfay Gebremariam Tesfahannes +2 more·Nov 9, 2025
We investigate quantum coherence in a hybrid cavity magnomechanical system incorporating a squeezed-magnon drive. By analyzing the Gaussian quantum coherence of the cavity, magnonic, and mechanical subsystems, as well as the total system coherence, w...
Active Noise Reduction in Si/SiGe Gated Quantum Dots
Rajat Bharadwaj, Parvathy Gireesan, Harikrishnan Sundaresan +5 more·Nov 9, 2025
Solid-state quantum technologies such as quantum dot qubits and quantum electrical metrology circuits rely on quantum phenomena at ultra-low energies, making them highly sensitive to various forms of environmental noise. Conventional passive filterin...
Self-induced manipulation of biphoton entanglement in topologically distinct modes
Wei-Wei Zhang, Chao Chen, Jizhou Wu·Nov 8, 2025
Biphoton states have shown promising applications in quantum information processing, including quantum communications, quantum metrology, and quantum imaging. The generation and manipulation of biphoton entanglement in topologically distinct modes pa...
Strain-engineered nanoscale spin polarization reversal in diamond nitrogen-vacancy centers
Zhixian Liu, Jiahao Sun, Ganyu Xu +7 more·Nov 7, 2025
The ability to control solid-state quantum emitters is fundamental to advancing quantum technologies. The performance of these systems is fundamentally governed by their spin-dependent photodynamics, yet conventional control methods using cavities of...
Electrostatics-induced breakdown of the integer quantum Hall effect in cavity QED
Gian Marcello Andolina, Zeno Bacciconi, Alberto Nardin +3 more·Nov 6, 2025
We analyze the recently observed breakdown of the integer quantum Hall effect in a two-dimensional electron gas embedded in a metallic split-ring resonator. By accounting for both the quantized vacuum field and electrostatic boundary modifications, w...
Fermionic Casimir densities for a uniformly accelerating mirror in the Fulling-Rindler vacuum
A. A. Saharian, L. Sh. Grigoryan, V. Kh. Kotanjyan·Nov 6, 2025
We investigate the local characteristics of the Fulling-Rindler vacuum for a massive Dirac field induced by a planar boundary moving with constant proper acceleration in $(D+1)$-dimensional flat spacetime. On the boundary, the field operator obeys th...
Mixed-State Measurement-Induced Phase Transitions in Imaginary-Time Dynamics
Yi-Ming Ding, Zenan Liu, Xu Tian +3 more·Nov 6, 2025
Mixed-state phase transitions have recently attracted growing attention as a new frontier in nonequilibrium quantum matter and quantum information. In this work, we introduce the measurement-dressed imaginary-time evolution (MDITE) as a novel framewo...
Non-relativistic Quantum Mechanics on a Twisted Cylindrical Surface
G. M. Delgado, J. E. G. Silva·Nov 6, 2025
Twisted cylindrical tubes are important model systems for nanostructures, heterostructures, and curved quantum devices. In this work, we investigate the quantum behavior of an electron confined to a twisted cylindrical surface. By first calculating t...
Quantum Entanglement as a Cohomological Obstruction
Kazuki Ikeda·Nov 6, 2025
We recast quantum entanglement as a cohomological obstruction to reconstructing a global quantum state from locally compatible information. We address this by considering presheaf cohomologies of states and entanglement witnesses. Sheafification eras...
Controllable Non-Hermitianity in Continuous-Variable Qubits
Ke-Xiong Yan, Zhi-Cheng Shi, Ye-Hong Chen +1 more·Nov 6, 2025
Pure dephasing is the dominant leak mechanism in photonic cat qubits because its phase errors disrupt the parity protection, rendering the qubit vulnerable to energy relaxation. In this manuscript, we reveal that this dephasing mechanism conceals an ...
Krylov Complexity Meets Confinement
Xuhao Jiang, Jad C. Halimeh, N. S. Srivatsa·Nov 5, 2025
In high-energy physics, confinement denotes the tendency of fundamental particles to remain bound together, preventing their observation as free, isolated entities. Interestingly, analogous confinement behavior emerges in certain condensed matter sys...