Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Excitation energies and UV-Vis absorption spectra from INDO/s+ML
Ezekiel Oyeniyi, Omololu Akin-Ojo·Dec 11, 2025
The semi-empirical INDO/s method is popular for studies of excitation energies and absorption of molecules due to its low computational requirement, making it possible to make predictions for large systems. However, its accuracy is generally low, par...
Quantum Separability Criteria Based on Symmetric Measurements
Yu Lu, Wen Zhou, Meng Su +3 more·Dec 11, 2025
We propose experimentally feasible separability criteria for bipartite systems based on local symmetric measurements. Through detailed examples, we demonstrate that our criteria can detect entanglement more effectively compared to existing counterpar...
Loophole-free Bell-inequality violation between atomic states in cavity-QED systems mediated by hybrid atom-light entanglement
Pei-Zhe Li, Soumyakanti Bose, Hyunseok Jeong +3 more·Dec 11, 2025
We present a feasible and scalable approach to testing Bell nonlocality and implementing device-independent quantum key distribution (DI-QKD) between distant atomic states in cavity-based architectures, mediated by hybrid atom-light entanglement. We ...
On the Optimality of a Quantum Key Distribution
Georgi Bebrov·Dec 11, 2025
Quantum key distribution (QKD) systems require optimal performance of both quantum and classical channels - utilizing as few as possible qubits and bits for establishing as many as possible key bits. Here we report a way to determine if a quantum key...
Generation of mechanical cat-like states via optomagnomechanics
Hao-Tian Li, Hong-Bin Wang, Zi-Xu Lu +1 more·Dec 11, 2025
We propose an optomagnomechanical approach for preparing a cat-like superposition state of mechanical motion. Our protocol consists of two steps and is based on the magnomechanical system where the magnetostrictively induced displacement further coup...
Optomagnonic generation of entangled travelling fields with different polarizations
Zi-Xu Lu, Huai-Bing Zhu, Xuan Zuo +1 more·Dec 11, 2025
The optomagnonic coupling between magnons and optical photons is an essential component for building remote quantum networks based on magnonics. Here we show that such a coupling, manifested as the magnon-induced Brillouin light scattering, can be ex...
Improved gap dependence in adiabatic state preparation by adaptive schedule
Xi Guo, Dong An·Dec 11, 2025
Adiabatic quantum computing is a powerful framework for state preparation, while its evolution time often scales quadratically in the inverse Hamiltonian spectral gap, leading to sub-optimal computational complexity. In this work, we introduce a nonl...
Trustworthy Orchestration Artificial Intelligence by the Ten Criteria with Control-Plane Governance
Byeong Ho Kang, Wenli Yang, Muhammad Bilal Amin·Dec 11, 2025
As Artificial Intelligence (AI) systems increasingly assume consequential decision-making roles, a widening gap has emerged between technical capabilities and institutional accountability. Ethical guidance alone is insufficient to counter this challe...
Tunable discrete quasi-time crystal from a single drive
Xu Feng, Shuo Liu, Shu Chen +1 more·Dec 11, 2025
The search for exotic temporal orders in quantum matter, such as discrete quasi-time crystals (DQTCs), has become an important theme in nonequilibrium physics. However, realizing these phases has so far required complex protocols, such as drives with...
Gradient projection method and stochastic search for some optimal control models with spin chains. II
Oleg V. Morzhin·Dec 11, 2025
This article (II) continues the research described in [Morzhin O.V. Gradient projection method and stochastic search for some optimal control models with spin chains. I (submitted)] (Article I), derives the needed finite-dimensional gradients corresp...
Single-molecule Scale Nuclear Magnetic Resonance Spectroscopy using a Robust Near-Infrared Spin Sensor
Yu Chen, Qi Zhang, Yuanhong Teng +6 more·Dec 11, 2025
Nuclear magnetic resonance (NMR) at the single-molecule level with atomic resolution holds transformative potential for structural biology and surface chemistry. Near-surface solid-state spin sensors with optical readout ability offer a promising pat...
Quantum relaxometry for detecting biomolecular interactions with single NV centers
Min Li, Qi Zhang, Xi Kong +14 more·Dec 11, 2025
The investigation of biomolecular interactions at the single-molecule level has emerged as a pivotal research area in life science, particularly through optical, mechanical, and electrochemical approaches. Spins existing widely in biological systems,...
Catalytic Tomography of Ground States
Chi-Fang Chen, Robbie King·Dec 11, 2025
We introduce a simple protocol for measuring properties of a gapped ground state with essentially no disturbance to the state. The required Hamiltonian evolution time scales inversely with the spectral gap and target precision (up to logarithmic fact...
Integrated Generation and Purification of Entangled Coherent States for Non-Gaussian Teleportation
Ananga Mohan Datta, William J. Munro, Nicolo Lo Piparo +1 more·Dec 11, 2025
Entangled coherent states (ECS) provide a powerful non-Gaussian resource for continuous-variable quantum communication, but their generation in scalable architectures remains challenging. We propose an integrated photonic scheme that creates high-fid...
Search for a solar-bound axion halo using the Global Network of Optical Magnetometers for Exotic physics searches
Tatum Z. Wilson, Derek F. Jackson Kimball, Samer Afach +48 more·Dec 11, 2025
We report on a search for a gravitationally bound solar axion halo using data from the Global Network of Optical Magnetometers for Exotic physics searches (GNOME), a worldwide array of magnetically shielded atomic magnetometers with sensitivity to ex...
Generating strong mechanical squeezing via combined squeezed vacuum field and two-tone driving
Xiao-Jie Wu, Huan-Huan Cheng, Cheng-Hua Bai +1 more·Dec 11, 2025
We propose a novel scheme for generating mechanical squeezed states based on the combined mechanism of a two-tone driving and a squeezed vacuum field. This innovative approach achieves a remarkable improvement in mechanical squeezing performance acro...
Optimal learning of quantum channels in diamond distance
Antonio Anna Mele, Lennart Bittel·Dec 11, 2025
Quantum process tomography, the task of estimating an unknown quantum channel, is a central problem in quantum information theory. A long-standing open question is to determine the optimal number of uses of an unknown channel required to learn it in ...
Entropic Uncertainty Relations with Quantum Memory in Accelerated Frames via Unruh-DeWitt Detectors
Ming-Ming Du, Hong-Wei Li, Shu-Ting Shen +5 more·Dec 11, 2025
Quantum uncertainty is deeply linked to quantum correlations and relativistic motion. The entropic uncertainty relation with quantum memory offers a powerful way to study how shared entanglement affects measurement precision. However, under accelerat...
Optical fuse based on the photorefractive effect for defending the light-injection attacks of quantum key distribution
Min Chen, Hong-Yan Song, Jia-Lin Chen +10 more·Dec 11, 2025
Light-injection attacks pose critical security threats to quantum key distribution (QKD) systems. Conventional defense methods, such as isolators, filters, and optical power monitoring, are confronted with the threats of specific attacks and the limi...
Quantum Internet in the Sky: Vision, Challenges, Solutions, and Future Directions
Phuc V. Trinh, Shinya Sugiura·Dec 11, 2025
This article envisions the concept of a ``Quantum Internet in the Sky", aiming to establish ubiquitous quantum communication links among distant nodes via free-space optical channels. Our key focus is on deploying quantum communication terminals on n...