Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Error semitransparent universal control of a bosonic logical qubit
Saswata Roy, Owen C. Wetherbee, Valla Fatemi·Mar 16, 2026
Bosonic codes offer hardware-efficient approaches to logical qubit construction and hosted the first demonstration of beyond-break even logical quantum memory. However, such accomplishments were done for idling information, and realization of fault-t...
Autonomous quantum heat engine
Tuomas Uusnäkki, Miika Rasola, Vasilii Vadimov +3 more·Mar 16, 2026
Quantum heat engines provide attractive means in quantum thermodynamics for studying the fundamentals of the flow of heat and work. Previous experimental implementations of heat engines operating at the level of a few excitation quanta have utilized ...
Ab Initio Study of Erbium Point Defects in 4H-SiC for Quantum Devices
Michael Kuban·Mar 16, 2026
Identifying scalable materials systems that exhibit quantum behavior is a central challenge in quantum information science. Point defects in certain wide-bandgap semiconductors are promising in this regard due to the maturity of semiconductor manufac...
Quantum Liang Information Flow vs. Out-of-Time-Order Correlators as Chaos Diagnostics in the Mixed-Field Ising Chain
Bin Yi·Mar 16, 2026
We systematically compare Quantum Liang Information Flow (QLIF) a recently proposed causal information measure with the out-of-time-order correlator (OTOC) as diagnostics of quantum chaos in the one-dimensional mixed-field Ising chain. Using exact di...
Extreme-Value Criticality and Gain Decomposition at the Integer Quantum Hall Transition
Wei-Han Li, Abbas Ali Saberi·Mar 16, 2026
Extreme-value fluctuations at quantum critical points remain poorly understood in the presence of strong correlations and openness. At the integer quantum Hall transition in the open Chalker--Coddington network, we show that the maximal wave-function...
Complementarity-Preserving Generative Theory for Multimodal ECG Synthesis: A Quantum-Inspired Approach
Timothy Oladunni, Farouk Ganiyu-Adewumi, Clyde Baidoo +1 more·Mar 16, 2026
Multimodal deep learning has substantially improved electrocardiogram (ECG) classification by jointly leveraging time, frequency, and time-frequency representations. However, existing generative models typically synthesize these modalities independen...
Thermodynamics of a biophotomimetic nonreciprocal quantum battery
Trishna Kalita, Manash Jyoti Sarmah, Himangshu Prabal Goswami·Mar 16, 2026
We propose a theoretical model of a fully functional nonreciprocal quantum battery inspired by the architecture of bacterial light-harvesting complexes. We assign functional roles to collective quantum optical subradiant and superradiant states and i...
Gaussian superpositions for bosonic encodings
Federico Centrone, Juan Pablo Paz, Augusto Roncaglia·Mar 16, 2026
Non-Gaussian bosonic states are ubiquitous in interacting light--matter systems, many-body platforms, and relativistic quantum field settings, but their quantitative characterization is hindered by the infinite-dimensional Hilbert space and by the po...
Asymmetric Linear-Combination-of-Unitaries Realization of Quantum Convolution via Modular Adders
Chen Yang, Kodai Kanemaru, Norio Yoshida +2 more·Mar 16, 2026
Discrete circular convolution over $\mathbb{Z}/N\mathbb{Z}$ is a linear operator and can be implemented on quantum hardware within the linear-combination-of-unitaries (LCU) framework. In this work, we make this connection explicit through an asymmetr...
Asymptotically good bosonic Fock state codes: Exact and approximate
Dor Elimelech, Arda Aydin, Alexander Barg·Mar 16, 2026
We examine exact and approximate error correction for multi-mode Fock state codes protecting against the amplitude damping noise. Based on a new formalization of the truncated amplitude damping channel, we show the equivalence of exact and approximat...
Schrödinger-picture formulation of a scalar quantum field driven by white noise
Pei Wang·Mar 16, 2026
We develop a Schrödinger-picture formulation for a scalar quantum field driven by a Lorentz-invariant white-noise field. The quantum state of the system is described by a stochastic wave functional that evolves according to a stochastic Schrödinger e...
Experimental Demonstration of Twin-Field Quantum Digital Signatures over 504 km
Chun-Hui Zhang, Jing-Yang Liu, Wen-Xuan Zhang +5 more·Mar 16, 2026
Digital signatures are one of the security cornerstones of the current information age. Compared with classical digital signatures based on computational complexity, quantum digital signatures (QDS) theoretically guarantee data integrity, authenticit...
Scalable Self-Testing of Mutually Anticommuting Observables and Maximally Entangled Two-Qudits
Souradeep Sasmal, Ritesh K. Singh, Prabuddha Roy +1 more·Mar 16, 2026
The next frontier in device-independent quantum information lies in the certification of scalable and parallel quantum resources, which underpin advanced quantum technologies. We put forth a simultaneous self-testing framework for maximally entangled...
Degrees, Levels, and Profiles of Contextuality
Ehtibar N. Dzhafarov, Victor H. Cervantes·Mar 16, 2026
We introduce a new notion, that of a contextuality profile of a system of random variables. Rather than characterizing a system's contextuality by a single number, its overall degree of contextuality, we show how it can be characterized by a curve re...
Measuring impurity-induced shifts in Coulomb crystallization
Mingyao Xu, Aaron A. Smith, Leonid Prokhorov +2 more·Mar 16, 2026
We report a laboratory measurement of how impurities shift Coulomb crystallization in a strongly interacting ionic system. This is achieved by using laser cooled Ca$^+$ crystals doped with a controlled number of Xe$^{12+}$ highly charged ions. We fin...
Decay-Resolved Charge Changes from Radioactive Decays in Levitated Microparticles
Jiaxiang Wang, T. W. Penny, Yu-Han Tseng +2 more·Mar 16, 2026
We measure event-by-event discrete changes in the net electric charge of an optically levitated silica microsphere arising from individual radioactive decays within the sphere, in coincidence with energy depositions in a nearby scintillation detector...
Photonic Quantum-Enhanced Knowledge Distillation
Kuan-Cheng Chen, Shang Yu, Chen-Yu Liu +10 more·Mar 16, 2026
Photonic quantum processors naturally produce intrinsically stochastic measurement outcomes, offering a hardware-native source of structured randomness that can be exploited during machine-learning training. Here we introduce Photonic Quantum-Enhance...
Quantum simulation of the Haldane phase using open shell molecules
Suman Aich, Ceren B. Dag, H. A. Fertig +2 more·Mar 16, 2026
Dipolar molecules in optical traps are a versatile platform for studying many-body phases of quantum matter in the presence of strong and long-range interactions. The dipolar interactions in such setups can be enabled by microwave driving opposite pa...
Realization of the SI Second Defined by Geometric Mean of Multiple Clock Transitions
Fang Fang, Chaowei Wang, Yani Zuo +1 more·Mar 16, 2026
The current definition of the SI second is based on the 133Cs ground-state hyperfine transition in the microwave domain, with the most accurate realizations achieving fractional frequency uncertainties of about (1-2)E16. In contrast, state-of-the-art...
Cavity-Free Distributed Quantum Computing with Rydberg Ensembles via Collective Enhancement
Aman Ullah·Mar 16, 2026
A complete architecture for cavity-free quantum networking based on collective enhancement in Rydberg atom ensembles is presented. The protocol exploits Rydberg blockade and phase-matched directional emission to eliminate optical cavities without sac...