Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
CO-QLink: Cryogenic Optical Link for Scalable Quantum Computing Systems and High-Performance Cryogenic Computing Systems
Zheng Chang, Siqi Zhang, Wenqiang Huang +8 more·Nov 28, 2025
Cryogenic systems necessitate extensive data transmission between room-temperature and cryogenic environments, as well as within the cryogenic temperature domain. High-speed, low-power data transmission is pivotal to enabling the deployment of larger...
Algorithmic Quantum Simulations of Quantum Thermodynamics
Yangsen Ye, Jue Nan, Dong Chen +27 more·Nov 28, 2025
Characterizing quantum phases-of-matter at finite-temperature is essential for understanding complex materials and large-scale thermodynamic phenomena. Here, we develop algorithmic protocols for simulating quantum thermodynamics on quantum hardware t...
Which-crystal information and wave-particle duality in induced-coherence interferometry
L. Theerthagiri·Nov 28, 2025
We provide an operational reinterpretation of wave-particle complementarity in the low-gain Zou-Wang-Mandel (ZWM) induced-coherence interferometer. In the low gain limit, each photon pair is emitted by either one of two nonlinear crystals. Preparing ...
Detuning-insensitive wide-field imaging of vector microwave fields with diamond sensors
Xiu-Qi Chen, Rui-Zhi Zhang, Gang-Qin Liu +1 more·Nov 28, 2025
Nitrogen vacancy (NV) centers in diamond have precipitated profound advances in microwave detection, manifesting themselves both in spatial resolution and sensitivity. However, typical methods based on Rabi oscillations are subject to detunings due t...
Escaping Barren Plateaus in Variational Quantum Algorithms Using Negative Learning Rate in Quantum Internet of Things
Ratun Rahman, Dinh C. Nguyen·Nov 28, 2025
Variational Quantum Algorithms (VQAs) are becoming the primary computational primitive for next-generation quantum computers, particularly those embedded as resource-constrained accelerators in the emerging Quantum Internet of Things (QIoT). However,...
Algebraic Obstructions and the Collapse of Elementary Structure in the Kronecker Problem
Soong Kyum Lee·Nov 28, 2025
While Kronecker coefficients $g(λ,μ,ν)$ with bounded rows are polynomial-time computable via lattice-point methods, no explicit closed-form formulas have been obtained for genuinely three-row cases in the 87 years since Murnaghan's foundational work....
Noise-Robustness for Delegated Quantum Computation in the Circuit Model
Anne Broadbent, Joshua Nevin·Nov 28, 2025
Cloud-based quantum computing, coupled with the rapid progress in quantum algorithms, brings to the forefront the question of verifiability in delegated quantum computations. In the current landscape of noisy quantum devices, this question must be ad...
On-Demand Control of Input-State-Dependent Single-Photon Scattering in Multi-Mode Waveguides
Yan Liu, Qing-Ao Xiang, Xin-Yuan Yang +4 more·Nov 28, 2025
Precise control of a single photon transport in broadband, multi-mode waveguides is a fundamental challenge for scalable quantum networks. We propose a theoretical scheme for on-demand control of single-photon scattering using a driven $Λ$-type emitt...
Nonreciprocal transmission in a cavity-magnon system by rotational Sagnac effect
Zhe-Qi Yang, Si-Qi Lin, Zhi-Rong Zhong·Nov 28, 2025
Ultrahigh nonreciprocal transmission has been achieved in a cavity-magnon system, which consists of two whispering gallery modes (WGMs) and a single magnon mode within a magnetic insulator yttrium iron garnet sphere. The nonreciprocal frequency shift...
Delayed Choice Quantum Eraser Experiment Revisited: Causality and Informational Coherence
Taku Ohwada·Nov 28, 2025
An operationally well-defined delayed-choice quantum-eraser experiment is proposed, realizing a genuine delayed choice within presently available quantum-optical technology. A multimode quantum memory supplies a controlled and verifiable delay, ensur...
Software for Studying CASCADE Error Correction Protocols in Quantum Communications
Nikita Repnkiov, V. Faerman·Nov 28, 2025
This article addresses the development of quantum communication methods in the context of emerging quantum computing threats and emphasizes the importance of key reconciliation in quantum communication systems. The study focuses on the CASCADE protoc...
Extensive search of Shannon entropy-based randomness certification protocols
Robert Okuła, Piotr Mironowicz·Nov 27, 2025
Quantum technologies offer significant advancements in information processing and communication, notably in the domain of random number generation (RNG). The use of Bell inequalities enables users to certify the randomness of outputs produced by untr...
Raising the Cavity Frequency in cQED
Raymond A. Mencia, Taketo Imaizumi, Igor A. Golovchanskiy +2 more·Nov 27, 2025
The basic element of circuit quantum electrodynamics (cQED) is a cavity resonator strongly coupled to a superconducting qubit. Since the inception of the field, the choice of the cavity frequency was, with a few exceptions, been limited to a narrow r...
An algorithm for atom-centered lossy compression of the atomic orbital basis in density functional theory calculations
Anthony O. Lara, Justin J. Talbot, Zhe Wang +1 more·Nov 27, 2025
Large atomic-orbital (AO) basis sets of at least triple and preferably quadruple-zeta (QZ) size are required to adequately converge Kohn-Sham density functional theory (DFT) calculations towards the complete basis set limit. However, incrementing the...
Denotational semantics for stabiliser quantum programs
Robert I. Booth, Cole Comfort·Nov 27, 2025
The stabiliser fragment of quantum theory is a foundational building block for quantum error correction and the fault-tolerant compilation of quantum programs. In this article, we develop a sound, universal and complete denotational semantics for sta...
Qubit Reuse Beyond Reorder and Reset: Optimizing Quantum Circuits by Fully Utilizing the Potential of Dynamic Circuits
Damian Rovara, Lukas Burgholzer, Robert Wille·Nov 27, 2025
Qubit reuse offers a promising way to reduce the hardware demands of quantum circuits, but current approaches are largely restricted to reordering measurements and applying qubit resets. In this work, we present an approach to further optimize quantu...
Distributed quantum architecture search using multi-agent reinforcement learning
Mikhail Sergeev, Georgii Paradezhenko, Daniil Rabinovich +1 more·Nov 27, 2025
Quantum architecture search (QAS) automates the design of parameterized quantum circuits for variational quantum algorithms. The framework finds a well-suited problem-specific structure of a variational ansatz. Among possible implementations of QAS t...
Nonlinear Odd Viscoelastic Effect
Ashwat Jain, Wojciech J. Jankowski, M. Mehraeen +1 more·Nov 27, 2025
We uncover a class of nonlinear odd viscoelastic effects in three spatial dimensions. We show that these dissipationless effects arise upon combining strains in two orthogonal directions, yielding momentum flow in the third direction. We demonstrate ...
OPI x Soft Decoders
André Chailloux·Nov 27, 2025
In recent years, a particularly interesting line of research has focused on designing quantum algorithms for code and lattice problems inspired by Regev's reduction. The core idea is to use a decoder for a given code to find short codewords in its du...
Integrated polarization-entangled photon source for wavelength-multiplexed quantum networks
Xiaodong Shi, Yue Li, Jinyi Du +13 more·Nov 27, 2025
Entangled photons are fundamental resources for quantum communication, computing, and networking. Among them, polarization-entangled photon pairs play an important role due to their straightforward state manipulation and direct use in quantum key dis...