Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Enhancing Infrared Laser Dissociation of Molecules with the Electromagnetic Vacuum
Johan F. Triana, Felipe Herrera·Nov 21, 2025
Controlling bond breaking is a long-standing goal in molecular physics. Infrared nanocavities are currently being developed for reaching exotic coupling regimes of cavity QED with a few molecules, but it is not well understood how chemical reactions ...
DISCA: A Digital In-memory Stochastic Computing Architecture Using A Compressed Bent-Pyramid Format
Shady Agwa, Yikang Shen, Shiwei Wang +1 more·Nov 21, 2025
Nowadays, we are witnessing an Artificial Intelligence revolution that dominates the technology landscape in various application domains, such as healthcare, robotics, automotive, security, and defense. Massive-scale AI models, which mimic the human ...
Fundamental Limitations of QAOA on Constrained Problems and a Route to Exponential Enhancement
Chinonso Onah, Kristel Michielsen·Nov 21, 2025
We study fundamental limitations of the generic Quantum Approximate Optimization Algorithm (QAOA) on constrained problems where valid solutions form a low dimensional manifold inside the Boolean hypercube, and we present a provable route to exponenti...
Basic cell for a quantum microwave router
Evgeniya Mutsenik, Aidar Sultanov, Leonie Kaczmarek +4 more·Nov 21, 2025
We report the first experimental realization of a scalable basic cell for quantum routing, enabling coherent control and exchange of microwave photons between two spatially separated superconducting waveguides coupled via a single transmon qubit. The...
Optical Entanglement Facilitated by Opto-Mechanical Cooling
Alexandr V. Karpenko, Andrey B. Matsko, Sergey P. Vyatchanin·Nov 21, 2025
Optomechanical generation of entangled optical beams is usually hindered by thermal noise. We present a theoretical study of low frequency entanglement generation between two optical harmonics emitted from a cavity optomechanical system operating in ...
Intrinsic preservation of plasticity in continual quantum learning
Yu-Qin Chen, Shi-Xin Zhang·Nov 21, 2025
Artificial intelligence in dynamic, real-world environments requires the capacity for continual learning. However, standard deep learning suffers from a fundamental issue: loss of plasticity, in which networks gradually lose their ability to learn fr...
A Lifting Theorem for Hybrid Classical-Quantum Communication Complexity
Xudong Wu, Guangxu Yang, Penghui Yao·Nov 21, 2025
We investigates a model of hybrid classical-quantum communication complexity, in which two parties first exchange classical messages and subsequently communicate using quantum messages. We study the trade-off between the classical and quantum communi...
Faithful real embedding of a three-dimensional complex Kochen-Specker configuration
Andrei Khrennikov, Karl Svozil·Nov 21, 2025
We describe a phase-adjusted realification procedure that embeds any finite set of rays in C^3 into R^3. By assigning an appropriate phase to each ray before applying the standard coordinate-wise map, we can arrange that two rays are orthogonal in C^...
Teaching quantum computing to computer science students: Review of a hands-on quantum circuit simulation practical
Florian Krötz, Xiao-Ting Michelle To, Korbinian Staudacher +1 more·Nov 21, 2025
We present a practical course targeting graduate students with prior knowledge of the basics of quantum computing. The practical aims to deepen students' understanding of fundamental concepts in quantum computing by implementing quantum circuit simul...
Is Bohmian mechanics missing some motion? Why a recent experiment is inconclusive
Mordecai Waegell·Nov 21, 2025
A recent experiment raises a supposed challenge to Bohmian mechanics, claiming to observe stationary states, which should have zero Bohm velocity, while indirectly measuring a nonzero speed based on how an evanescent wavefunction spreads from one wav...
Witnesses of Genuine Multipartite Entanglement and Nonlocal Measurement Back-action for Raman-scattering Quantum Systems
Kai Ryen Bush, Kjetil Børkje·Nov 21, 2025
Entanglement between remote quantum mechanical systems enables a range of quantum information tasks in communication, computation and distributed sensing. Large numbers of entangled subsystems also require experimentally accessible and practically fe...
Theoretical Analysis of Photonic Resonances in Spectroscopic Measurements of a Kerr Nonlinear Resonator
Yuki Tanaka, Aiko Yamaguchi, Tomohiro Yamaji +4 more·Nov 21, 2025
The Kerr parametric oscillator (KPO) has recently attracted considerable attention from the perspective of its applications to quantum information processing, and understanding its properties is an important challenge. Spectroscopic measurements serv...
Collective early-time spontaneous decay of a strongly driven cold atomic ensemble
Daniel Benedicto Orenes, Naudson Lucas Lopes Matias, Apoorva Apoorva +3 more·Nov 21, 2025
In this work we present a numerical and experimental investigation of the collective early-time decay rates of a strongly driven and optically dense cold atomic cloud. We prepare the atomic ensemble by driving the system to its steady state with vary...
The Scrooge ensemble in many-body quantum systems
Max McGinley, Thomas Schuster·Nov 21, 2025
In many physical settings, the statistical properties of quantum states are thought to be described by the Scrooge ensemble, a more structured generalization of the Haar ensemble. In this work, we prove several key results on the properties and compl...
The evolution of quantum battery capacity of GHZ-like states under Markovian channels
Hui Liu, Tinggui Zhang·Nov 21, 2025
Quantum battery has enormous potential for development, and quantum battery capacity is an important indicator of quantum battery. In this work, we mainly study the evolution of quantum battery capacity of GHZ state and GHZ-like states under Markovia...
Anyon Quasilocalization in a Quasicrystalline Toric Code
Soumya Sur, Mohammad Saad, Adhip Agarwala·Nov 21, 2025
An exactly solvable model of a quantum spin liquid on a quasicrystal, akin to Kitaev's honeycomb model, was introduced in Kim \textit{et al.}, \href{https://doi.org/10.1103/PhysRevB.110.214438}{\text{Phys. Rev. B} \textbf{110}, 214438 (2024)}. It was...
Dissecting Quantum Reinforcement Learning: A Systematic Evaluation of Key Components
Javier Lazaro, Juan-Ignacio Vazquez, Pablo Garcia-Bringas·Nov 21, 2025
Parameterised quantum circuit (PQC) based Quantum Reinforcement Learning (QRL) has emerged as a promising paradigm at the intersection of quantum computing and reinforcement learning (RL). By design, PQCs create hybrid quantum-classical models, but t...
Critical dephasing rates for the observation of collective behavior in a pair of coupled quantum emitters
Sébastien Quistrebert, Jean-Sébastien Lauret, Nikos Fayard·Nov 21, 2025
Efficient atom-photon interfaces require the controlled assembly of quantum emitters, where collective effects such as superradiance and subradiance can emerge. Recent experiments with subwavelength arrays of quantum dots have observed superradiance ...
Exceptional line and pseudospectrum in black hole spectroscopy
Li-Ming Cao, Ming-Fei Ji, Liang-Bi Wu +1 more·Nov 21, 2025
We investigate the exceptional points (EPs) and their pseudospectra in black hole perturbation theory. By considering a Gaussian bump modification to the Regge-Wheeler potential with variable amplitude, position, and width parameters, $(\varepsilon,d...
Chiral cavity-magnonic system for the unidirectional photon blockade
Jiaxin Yang, Yilou Liu, Rui-Shan Zhao +1 more·Nov 21, 2025
We propose an scheme for directional single-photon source based on a chiral cavity-magnon system. In this system, the magnon mode in a single-crystal yttrium iron garnet (YIG) sphere is coupled to only one of two rotating microwave modes in the torus...