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Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Symbolic Quantum-Trajectory Method for Multichannel Dicke Superradiance
Raphael Holzinger, Nico S. Bassler, Julian Lyne +2 more·Nov 4, 2025
We develop and solve a Dicke superradiant model with two or more competing collective decay channels of tunable rates. Recent work analyzed stationary properties of multichannel Dicke superradiance using hydrodynamic mean-field approximations as show...
Temporal filtered quantum sensing with the nitrogen-vacancy center in diamond
Florian Boehm, Yan Liu, Chengliang Yue +5 more·Nov 4, 2025
Nitrogen vacancy centers in diamond are among the leading solid state quantum platforms, offering exceptional spatial resolution and sensitivity for applications such as magnetic field sensing, thermometry, and bioimaging. However, in high background...
Enhancing NTRUEncrypt Security Using Markov Chain Monte Carlo Methods: Theory and Practice
Gautier-Edouard Filardo, Thibaut Heckmann·Nov 4, 2025
This paper presents a novel framework for enhancing the quantum resistance of NTRUEncrypt using Markov Chain Monte Carlo (MCMC) methods. We establish formal bounds on sampling efficiency and provide security reductions to lattice problems, bridging t...
Electromagnetic Quantum Memory Printed by Gravity
Jie Sheng, Tsutomu T. Yanagida, Bo Gao +1 more·Nov 4, 2025
The electromagnetic memory is a theoretically predicted effect of great conceptual importance. In this Letter, we show that gravitation acceleration can serve as a source to print memory phases in superconducting states, through the electric field an...
Decay of transmon qubit in a broadband one-dimensional cavity
Ya. S. Greenberg, A. A. Shtygashev, O. V. Kibis·Nov 4, 2025
We investigate the decay dynamics of a three-level artificial atom, a superconducting transmon qubit, weakly coupled to a continuum of modes in a broadband, one-dimensional cavity. Using the resolvent formalism, we derive analytical expressions for t...
Multi-Particle Quantum Walks in a Dipole-Conserving Bose-Hubbard Model
Sooshin Kim, Byungmin Kang, Perrin Segura +4 more·Nov 4, 2025
When particles move through a crystal or optical lattice, their motion can sometimes become frozen by strong external forces -- yet collective motion may still emerge through subtle many-body effects. In this work, we explore such constrained dynamic...
One-step preparation of 3D Bell and 3D GHZ states with Rydberg atoms
Jiping Wang, Huapeng Liu·Nov 4, 2025
Three-dimensional Bell states and GHZ states serve as representative examples of high-dimensional entangled states. In this paper, we propose a scheme for generating three-dimensional Bell and GHZ entangled states using Rydberg atoms. By leveraging R...
Dirac delta-convergence of free-motion time-of-arrival eigenfunctions
John Jaykel P. Magadan, Eric A. Galapon·Nov 4, 2025
Previous numerical analyses on the Aharonov-Bohm (AB) operator representing the quantum time-of-arrival (TOA) observable for the free particle have indicated that its eigenfunctions represent quantum states with definite arrival time at the arrival p...
Federated Quantum Kernel Learning for Anomaly Detection in Multivariate IoT Time-Series
Kuan-Cheng Chen, Samuel Yen-Chi Chen, Chen-Yu Liu +1 more·Nov 4, 2025
The rapid growth of industrial Internet of Things (IIoT) systems has created new challenges for anomaly detection in high-dimensional, multivariate time-series, where privacy, scalability, and communication efficiency are critical. Classical federate...
Localized to delocalized spatial quantum correlation evolution in structured bright twin beams
Jerin A Thachil, Chirang R Patel, U. Ashwin +1 more·Nov 4, 2025
Quantum correlations in the spatial domain hold great promise for applications in quantum imaging, quantum cryptography and quantum information processing, owing to the infinite dimensionality of the associated Hilbert space. Here, we present a theor...
Multiplexed double-transmon coupler scheme in scalable superconducting quantum processor
Tianqi Cai, Chitong Chen, Kunliang Bu +7 more·Nov 4, 2025
Precise control of superconducting qubits is essential for advancing both quantum simulation and quantum error correction. Recently, transmon qubit systems employing the single-transmon coupler (STC) scheme have demonstrated high-fidelity single- and...
Interaction-Induced Quasicrystalline Order: Emergence of Quasi-Solid and Quasi-Supersolid Phases
Chao Zhang·Nov 4, 2025
Deterministic quasiperiodicity in quantum systems has long been associated with localization, criticality, or glassy behavior, and has therefore been believed to suppress long-range order rather than stabilize it. Here we demonstrate the opposite: qu...
Information recycling in coherent state discrimination
L. F. Melo, János A. Bergou, Alexandre B. Tacla·Nov 4, 2025
The discrimination of coherent states is a crucial component in quantum communication with continuous variables, especially in quantum key distribution protocols (CV-QKD), which rely on the ability to distinguish among different coherent states to es...
Preserving fermionic statistics for single-particle approximations in microscopic quantum master equations
Mikayla Z. Fahrenbruch, Anthony W. Schlimgen, Kade Head-Marsden·Nov 4, 2025
Microscopic master equations have gained traction for the dissipative treatment of molecular spin and solid-state systems for quantum technologies. Single particle approximations are often invoked to treat these systems, which can lead to unphysical ...
QuPCG: Quantum Convolutional Neural Network for Detecting Abnormal Patterns in PCG Signals
Yasaman Torabi, Shahram Shirani, James P. Reilly·Nov 4, 2025
Early identification of abnormal physiological patterns is essential for the timely detection of cardiac disease. This work introduces a hybrid quantum-classical convolutional neural network (QCNN) designed to classify S3 and murmur abnormalities in ...
Software for Creating Scalable Benchmarks from Quantum Algorithms
Noah Siekierski, Stefan Seritan, Neer Patel +3 more·Nov 3, 2025
Creating scalable, reliable, and well-motivated benchmarks for quantum computers is challenging: straightforward approaches to benchmarking suffer from exponential scaling, are insensitive to important errors, or use poorly-motivated performance metr...
Superconducting pairing correlations on a trapped-ion quantum computer
Etienne Granet, Sheng-Hsuan Lin, Kevin Hémery +31 more·Nov 3, 2025
The Fermi-Hubbard model is the starting point for the simulation of many strongly correlated materials, including high-temperature superconductors, whose modelling is a key motivation for the construction of quantum simulation and computing devices. ...
ZZ-Free Two-Transmon CZ Gate Mediated by a Fluxonium Coupler
Junyoung An, Helin Zhang, Qi Ding +19 more·Nov 3, 2025
Eliminating residual ZZ interactions in a two-qubit system is essential for reducing coherent errors during quantum operations. In a superconducting circuit platform, coupling two transmon qubits via a transmon coupler has been shown to effectively s...
Current cross-correlation spectroscopy of Majorana bound states
Michael Ridley, Eliahu Cohen, Christian Flindt +1 more·Nov 3, 2025
The clock speed of topological quantum computers based on Majorana zero mode (MZM)-supporting nanoscale devices is limited by the time taken for electrons to traverse the device. We employ the time-dependent Landauer-B{ü}ttiker transport theory for c...
Geometric characterization of non-Gaussian entanglement for finite stellar rank states
Carlos E. Lopetegui-Gonzalez, Massimo Frigerio, Mattia Walschaers·Nov 3, 2025
We introduce a general framework for the analysis of non-Gaussian entanglement in bosonic states of finite stellar rank. The central result is the full characterization of their entanglement structure through the atomic decomposition of their stellar...