Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Noisy Analysis of Quantum SMOTE on Condition Monitoring and Fault Classification in Industrial and Energy Systems
Amit S. Patel, Himanshukumar R. Patel, Bikash K. Behera·Jan 16, 2026
Imbalanced datasets are a fundamental issue in industrial condition monitoring and fault classification pipelines, causing classical machine learning models to overfit the majority classes while failing to learn the minority fault patterns. This work...
Experimental study of coupled quantum billiards with integrable and chaotic classical dynamics and test of a special Rosenzweig-Porter model
Xiaodong Zhang, Jiongning Che, Barbara Dietz·Jan 16, 2026
We report on the experimental study of the spectral properties of quantum systems consisting of two quantum billiards (QBs), one with chaotic, the other one with integrable classical dynamics, that are coupled to each other via an opening in a common...
UAV-Deployed OAM-BB84 QKD: Turbulence- and Misalignment-Resilient Decoy-State Finite-Key Security with AI-Assisted Calibration
Linxier Deng·Jan 16, 2026
We present a theoretical framework for quantum key distribution (QKD) using orbital angular momentum (OAM) encoded BB84 on an unmanned aerial vehicle (UAV) platform. A unified channel model captures Kolmogorov turbulence, pointing induced misalignmen...
Converting qubit relaxation into erasures with a single fluxonium
Chenlu Liu, Yulong Li, Jiahui Wang +9 more·Jan 16, 2026
Qubits that experience predominantly erasure errors offer distinct advantages for fault-tolerant operation. Indeed, dual-rail encoded erasure qubits in superconducting cavities and transmons have demonstrated high-fidelity operations by converting ph...
Off-resonant preservation and generation of imaginarity in distributed scenarios
Si-Min Wang, Ming-Liang Hu, Heng Fan·Jan 16, 2026
We study the nonlocal advantage of quantum imaginarity (NAQI) and distillable imaginarity of assistance (DIA), which treat imaginarity as a resource in distributed scenarios. For two qubits interacting with a lossy cavity, it is shown that both the N...
Madelung hydrodynamics of spin-orbit coupling: action principles, currents, and correlations
Cesare Tronci·Jan 15, 2026
We exploit the variational and Hamiltonian structures of quantum hydrodynamics with spin to unfold the correlation and torque mechanisms accompanying spin-orbit coupling (SOC) in electronic motion. Using Hamilton's action principle for the Pauli equa...
Electro-optic frequency comb Doppler thermometry
Sean M. Bresler, Erin M. Adkins, Stephen P. Eckel +4 more·Jan 15, 2026
We demonstrate a Doppler thermometer based on direct optical frequency comb spectroscopy of an $^{85}$Rb vapor with a chirped electro-optic frequency comb (EOFC). The direct EOFC Doppler thermometer is accurate to within its approximately 1 K statist...
Addition to the dynamic Stark shift of the coherent population trapping resonance
Gavriil Voloshin, Konstantin Barantsev, Andrey Litvinov·Jan 15, 2026
This paper presents a theoretical study of the light-induced shift of the coherent population trapping resonance. An analytical model is proposed that describes the interaction of two radiation components with an atomic system using a $Λ$ scheme and ...
QDsiM: A Noise-Aware Simulation Toolkit for Quantum Diamond Microscope
Satyam Pandey, Abhimanyu Magapu, Prabhat Anand +2 more·Jan 15, 2026
The nitrogen-vacancy (NV) center in diamond is a leading solid-state platform for room-temperature quantum magnetometry owing to its long spin coherence times, optical spin initialization and readout, and high sensitivity to magnetic, electric, and t...
Noise-Resilient Quantum Evolution in Open Systems through Error-Correcting Frameworks
Nirupam Basak, Goutam Paul, Pritam Chattopadhyay·Jan 15, 2026
We analyze quantum state preservation in open quantum systems using quantum error-correcting (QEC) codes explicitly embedded in microscopic system-bath models. Rather than assuming abstract quantum channels, we consider multi-qubit registers coupled ...
On the average-case complexity of learning states from the circular and Gaussian ensembles
Maxwell West·Jan 15, 2026
Studying the complexity of states sampled from various ensembles is a central component of quantum information theory. In this work we establish the average-case hardness of learning, in the statistical query model, the Born distributions of states s...
Fluctuation-induced quenching of chaos in quantum optics
Mei-Qi Gao, Song-hai Li, Xun Li +3 more·Jan 15, 2026
Recent studies have extensively explored chaotic dynamics in quantum optical systems through the mean-field approximation, which corresponds to an ideal, fluctuation-free scenario. However, the inherent sensitivity of chaos to initial conditions impl...
Towards Minimal Fault-tolerant Error-Correction Sequence with Quantum Hamming Codes
Sha Shi, Xiao-Yang Xu, Min-Quan Cheng +2 more·Jan 15, 2026
The high overhead of fault-tolerant measurement sequences (FTMSs) poses a major challenge for implementing quantum stabilizer codes. Here, we address this problem by constructing efficient FTMSs for the class of quantum Hamming codes $[\![2^r-1, 2^r-...
Contextuality Derived from Minimal Decision Dynamics: Quantum Tug-of-War Decision Making
Song-Ju Kim·Jan 15, 2026
Decision making often exhibits context dependence that challenges classical probability theory. While quantum cognition has successfully modeled such phenomena, it remains unclear whether quantum probability is merely a convenient assumption or a nec...
Reentrant topological phases and entanglement scalings in moiré-modulated extended Su-Schrieffer-Heeger Model
Guo-Qing Zhang, L. F. Quezada, Shi-Hai Dong·Jan 15, 2026
Recent studies of moiré physics have unveiled a wealth of opportunities for significantly advancing the field of quantum phase transitions. However, properties of reentrant phase transitions driven by moiré strength are poorly understood. Here, we in...
Light-induced Magnetization by Quantum Geometry
Hiroki Yoshida, Takehito Yokoyama·Jan 14, 2026
We propose a mechanism for the inverse Faraday and the inverse Cotton--Mouton effects arising from quantum geometry, characterized by the quantum metric quadrupole and the weighted quantum metric. Within a semiclassical framework based on the Boltzma...
Non-invertible circuit complexity from fusion operations
Saskia Demulder·Jan 14, 2026
Modern understanding of symmetry in quantum field theory includes both invertible and non-invertible operations. Motivated by this, we extend Nielsen's geometric approach to quantum circuit complexity to incorporate non-invertible gates. These arise ...
A measurement-based protocol for the generation of delocalised quantum states of a mechanical system
Matteo Bordin·Jan 14, 2026
Non-Gaussian mechanical states are a key resource for quantum-enhanced sensing and tests of macroscopic quantum physics. We propose a measurement-based protocol to herald delocalized, nonclassical states of a mechanical oscillator in cavity optomecha...
Relaxation Process During Complex Time Evolution In Two-Dimensional Integrable and Chaotic CFTs
Chen Bai, Weibo Mao, Masahiro Nozaki +2 more·Jan 14, 2026
We investigate the complex time evolution of a vacuum state with the insertion of a local primary operator in two-dimensional conformal field theories (2d CFTs). This complex time evolution can be considered as a composite process constructed from Lo...
Mechanistic principles of exciton-polariton relaxation
Ian Haines, Arshath Manjalingal, Logan Blackham +2 more·Jan 14, 2026
Exciton-polaritons are light-matter hybrid quasi-particles that have emerged as a flexible platform for developing quantum technologies and engineering material properties. However, the fundamental mechanistic principles that govern their dynamics an...