Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Scalable Quantum Walk-Based Heuristics for the Minimum Vertex Cover Problem
F. S. Luiz, A. K. F. Iwakami, D. H. Moraes +1 more·Dec 2, 2025
We propose a novel heuristic quantum algorithm for the Minimum Vertex Cover (MVC) problem based on continuous-time quantum walks (CTQWs). In this framework, the coherent propagation of a quantum walker over a graph encodes its structural properties i...
Stability of quantum chaos against weak non-unitarity
Yi-Cheng Wang, Ehud Altman, Samuel J. Garratt·Dec 2, 2025
We study the quantum dynamics generated by the repeated action of a non-unitary evolution operator on a system of qubits. Breaking unitarity can lead to the purification of mixed initial states, which corresponds to the loss of sensitivity to initial...
Time-series forecasting with multiphoton quantum states and integrated photonics
Rosario Di Bartolo, Simone Piacentini, Francesco Ceccarelli +4 more·Dec 2, 2025
Quantum machine learning algorithms have very recently attracted significant attention in photonic platforms. In particular, reconfigurable integrated photonic circuits offer a promising route, thanks to the possibility of implementing adaptive feedb...
Tunable giant Purcell enhancement of quantum light emitters by means of acoustic graphene plasmons
Justin Gruber, Mahtab A. Khan, Dirk R. Englund +1 more·Dec 2, 2025
Inspired by the remarkable ability of plasmons to boost radiative emission rates, we propose leveraging acoustic graphene plasmons (AGPs) to realize tunable, giant Purcell enhancements for single-photon, entangled-photon, and multipolar quantum emitt...
Information-Theoretic Constraints on Variational Quantum Optimization: Efficiency Transitions and the Dynamical Lie Algebra
Jun Liang Tan·Dec 2, 2025
Variational quantum algorithms are leading candidates for near-term advantage, yet their scalability is fundamentally limited by the ``Barren Plateau'' phenomenon. While traditionally attributed to geometric concentration of measure, I propose an inf...
SDQC: Distributed Quantum Computing Architecture Utilizing Entangled Ion Qubit Shuttling
Seunghyun Baek, Seok-Hyung Lee, Dongmoon Min +1 more·Dec 2, 2025
We propose Shuttling-based Distributed Quantum Computing (SDQC), a hybrid architecture that combines the strengths of physical qubit shuttling and distributed quantum computing to enable scalable trapped-ion quantum computing. SDQC performs non-local...
Detecting Symmetrizability in Physical Systems
Florian Seitz, Janis Nötzel·Dec 2, 2025
We study the problem of data transmission under the influence of a jammer, which is typical for wireless systems and commonly modeled as an arbitrarily varying channel (AVC) in information theory. AVC fulfilling a certain set of linear equations are ...
Experimental Blueprint for Distinguishing Decoherence from Objective Collapse
Ridha Horchani·Dec 2, 2025
The transition from the quantum to the classical realm remains one of the most profound open questions in physics. While quantum theory predicts the existence of macroscopic superpositions, their apparent absence in the everyday world is attributed e...
Phononic Casimir Effect in Planar Materials
Pablo Rodriguez-Lopez, Dai-Nam Le, Lilia M. Woods·Dec 2, 2025
The Phononic Casimir effect between planar objects is investigated by deriving a formalism from the quantum partition function of the system following multiscattering approach. This fluctuation-induced coupling is mediated by phonons modeled as an ef...
Implementation and Analysis of Quantum Majority Rules under Noisy Conditions
Gal Amit, Yuval Idan, Michael Suleymanov +2 more·Dec 2, 2025
Quantum voting, inspired by quantum game theory, provides a framework in which the quantum majority rule (QMR) constitution of Bao and Yunger Halpern [Phys. Rev. A 95, 062306 (2017)] violates the quantum analogue of Arrow's impossibility theorem. We ...
Effect of slowly decaying long-range interactions on topological qubits
Etienne Granet, Michael Levin·Dec 2, 2025
We study the robustness of topological ground state degeneracy to long-range interactions in quantum many-body systems. We focus on slowly decaying two-body interactions that scale like a power-law $1/r^α$ where $α$ is smaller than the spatial dimens...
Theory of single-photon emission from neutral and charged excitons in a polarization-selective cavity
Luca Vannucci, Niels Gregersen·Dec 2, 2025
Single-photon sources based on neutral or charged excitons in a semiconductor quantum dot are attractive resources for photonic quantum computers and simulators. To obtain indistinguishable photons, the source is pumped on resonance with polarized la...
Intrinsic Second-Order Topological Superconductors with Tunable Majorana Zero Modes
Xiao-Jiao Wang, Yijie Mo, Zhi Wang +2 more·Dec 2, 2025
Dirac semimetals, with their protected Dirac points, present an ideal platform for realizing intrinsic topological superconductivity. In this work, we investigate superconductivity in a two-dimensional, square-lattice nonsymmorphic Dirac semimetal. I...
Fault-tolerant quantum computation with constant overhead for general noise
Matthias Christandl, Omar Fawzi, Ashutosh Goswami·Dec 2, 2025
Fault-tolerant quantum computation traditionally incurs substantial resource overhead, with both qubit and time overheads scaling polylogarithmically with the size of the computation. While prior work by Gottesman showed that constant qubit overhead ...
Reaching Sachdev-Ye-Kitaev physics by shaking the Hubbard model
Charles Creffield, Fernando Sols, Marco Schirò +1 more·Dec 2, 2025
The Sachdev-Ye-Kitaev (SYK) model has attracted widespread attention due to its relevance to diverse areas of physics, such as high temperature superconductivity, black holes, and quantum chaos. The model is, however, extremely challenging to realize...
Observation of non-Hermitian many-body phase transition in a Rydberg-atom array
Yao-Wen Zhang, Biao Xu, Yijia Zhou +8 more·Dec 2, 2025
Non-Hermitian quantum mechanics with parity-time (PT) symmetry offers a powerful framework for exploring the complex interplay of dissipation and coherent interactions in open quantum systems. While PT-symmetry breaking has been studied in various ph...
Minimal decomposition entropy and optimal representations of absolutely maximally entangled states
N Ramadas·Dec 2, 2025
Understanding and classifying multipartite entanglement is fundamental to quantum information processing. This work focuses on absolutely maximally entangled (AME) states, a class of highly entangled states characterized by their maximal entanglement...
Dynamic Modulation of Long Range Photon Magnon Coupling
Alban Joseph, Mawgan A. Smith, Martin P. Weides +1 more·Dec 2, 2025
Evidence of non-hermitian behavior has been recently demonstrated in cavity magnonics, including the emergence of mode level attraction and exceptional points in spectroscopic measurements. This work demonstrates experimental evidence of time-domain ...
Generative modeling using evolved quantum Boltzmann machines
Mark M. Wilde·Dec 2, 2025
Born-rule generative modeling, a central task in quantum machine learning, seeks to learn probability distributions that can be efficiently sampled by measuring complex quantum states. One hope is for quantum models to efficiently capture probability...
Detection of Mpemba effect through good observables in open quantum systems
Pitambar Bagui, Arijit Chatterjee, Bijay Kumar Agarwalla·Dec 2, 2025
The Mpemba effect refers to the anomalous relaxation of a quantum state that, despite being initially farther from equilibrium, relaxes faster than a closer counterpart. Detecting such a quantum Mpemba effect typically requires full knowledge of the ...