Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
A novel quantum memory effect and thermal modulation in graviton-mediated entanglement
Mainak Dutta, Partha Nandi, Bibhas Ranjan Majhi·Oct 13, 2025
A central challenge in probing the quantum nature of gravity is to distinguish effects that are genuinely quantum from those that can be explained classically. In this work, we study how quantized gravitational waves interact with thermal quantum sys...
Analytical Control of Quantum Coherence: Markovian Revival via Basis Engineering and Exact Non-Markovian Criteria
Na-Na Zhang, Chao-Yi Wu, Ming Li +4 more·Oct 13, 2025
The preservation of quantum coherence is besieged by a fundamental dogma: its revival necessitates non-Markovian memory effects from structured environments. This paradigm has constrained quantum control strategies and obscured simpler paths to coher...
Assessing the Role of Communication in Modular Multi-Core Quantum Systems
Maurizio Palesi, Enrico Russo, Giuseppe Ascia +8 more·Oct 13, 2025
The scalability of quantum computing is constrained by the physical and architectural limitations of monolithic quantum processors. Modular multi-core quantum architectures, which interconnect multiple quantum cores (QCs) via classical and quantum-co...
On the Potential of Quantum Computing in Classical Program Analysis
Yicheng Guang, Pietro Zanotta, Kai Zhou +2 more·Oct 13, 2025
Classical program analysis techniques, such as abstract interpretation and symbolic execution, are essential for ensuring software correctness, optimizing performance, and enabling compiler optimizations. However, these techniques face computational ...
How Gravity Can Explain the Collapse of the Wavefunction
Sabine Hossenfelder·Oct 13, 2025
I present a simple argument for why a fundamental theory that unifies matter and gravity gives rise to what seems to be a collapse of the wavefunction. The resulting model is local, parameter-free and makes testable predictions.
Detecting gravitational waves with spin systems
Jiamin Liang, Mingqiu Li, Yu Gao +3 more·Oct 13, 2025
The observation of gravitational waves has opened a new window into the Universe through gravitational-wave astronomy. However, high-frequency gravitational waves remain undetected. In this work, we propose that spin systems can be employed to detect...
Electron-positron pair creation in a supercritical static asymmetric potential well
Z. L. Li, A. R. Sun, J. H. Xia +2 more·Oct 13, 2025
The electron-positron pair creation in a supercritical static asymmetric potential well, which is composed of a subcritical and a supercritical potential separated by a fixed distance, is investigated using computational quantum field theory. To expl...
Effective quantum reorganization energy for electron transfer
Ethan Abraham, Junghyun Yoon, Troy Van Voorhis +1 more·Oct 13, 2025
The Marcus theory expression for the rate of non-adiabatic electron transfer is widely used across a range of physical conditions. Although Marcus theory defines the reorganization energy classically, here we show that the reorganization parameter go...
Verifiable Quantum Advantage via Optimized DQI Circuits
Tanuj Khattar, Noah Shutty, Craig Gidney +5 more·Oct 13, 2025
Decoded Quantum Interferometry (DQI) provides a framework for superpolynomial quantum speedups by reducing certain optimization problems to reversible decoding tasks. We apply DQI to the Optimal Polynomial Intersection (OPI) problem, whose dual code ...
On the Feasibility of Exact Unitary Transformations for Many-body Hamiltonians
Praveen Jayakumar, Tao Zeng, Artur F. Izmaylov·Oct 13, 2025
Exact unitary transformations play a central role in the analysis and simulation of many-body quantum systems, yet the conditions under which they can be carried out exactly and efficiently remain incompletely understood. We show that exact transform...
Dominant spin-spin relaxation mechanism at clock transition of the $Ho_{x}Y_{1-x}W_{10}$ complex at different concentrations
Xiao Chen, Haechan Park, Silas Hoffman +2 more·Oct 13, 2025
Spin decoherence poses a significant challenge in molecular magnets, with the nuclear spin bath serving as a prominent source. Intriguingly, spin qubits at the clock transition exhibit remarkable insensitivity to the surrounding nuclear spins. Recent...
Error mitigation for partially error-corrected quantum computers
Ben DalFavero, Ryan LaRose·Oct 13, 2025
We present a method for quantum error mitigation on partially error-corrected quantum computers - i.e., computers with some logical qubits and some noisy qubits. Our method is inspired by the error cancellation method and is implemented via a circuit...
A Simple and Efficient One-Shot Signature Scheme
Andrew Huang, Vinod Vaikuntanathan·Oct 13, 2025
One-shot signatures (OSS) are a powerful and uniquely quantum cryptographic primitive which allows anyone, given common reference string, to come up with a public verification key $\mathsf{pk}$ and a secret signing state $|\mathsf{sk}\rangle$. With t...
Structural encoding with classical codes for computational-basis bit-flip correction in the early fault-tolerant regime
IlKwon Sohn, Changyeol Lee, Wooyeong Song +2 more·Oct 13, 2025
Achieving reliable performance on early fault-tolerant quantum hardware will depend on protocols that manage noise without incurring prohibitive overhead. We propose a novel framework that integrates quantum computation with the functionality of clas...
Sublogarithmic Distillation in all Prime Dimensions using Punctured Reed-Muller Codes
Tanay Saha, Shiroman Prakash·Oct 12, 2025
Magic state distillation is a leading but costly approach to fault-tolerant quantum computation, and it is important to explore all possible ways of minimizing its overhead cost. The number of ancillae required to produce a magic state within a targe...
Magnon-rotation enhanced nonreciprocity of multipartite entanglement in a magnomechanical system
Hamza Harraf, Noura Chabar, Mohamed Amazioug +2 more·Oct 12, 2025
Nonreciprocal physics is attracting significant interest in quantum information processing. In this work, we propose a scheme to investigate the nonreciprocity of bi- and tripartite entanglement and generate squeezed states in a magnomechanical syste...
Spinning into Quantum Geometry: Dirac and Wheeler-DeWitt Dynamics from Stochastic Helicity
Partha Nandi, Partha Ghose, Francesco Petruccione·Oct 12, 2025
Spin networks in loop quantum gravity provide a kinematical picture of quantum geometry but lack a natural mechanism for dynamical Dirac-type evolution, while the Wheeler--DeWitt equation typically enters only as an imposed constraint. We propose a s...
Rigorous estimation of error thresholds of transversal Clifford logical circuits
Yichen Xu, Yiqing Zhou, James P. Sethna +1 more·Oct 12, 2025
The threshold theorem promises a path to fault-tolerant quantum computation, provided the physical error rate is below a critical threshold. While transversal gates efficiently implement logical operations, they propagate errors and can lower this th...
Sheared potentials and travelling nodes
Francisco M. Fernández·Oct 12, 2025
When a sheared potential is deformed in such a way that the distance between the classical turning points remains constant the eigenvalues of the Schrödinger equation oscillate with respect to the potential parameter responsible for the deformation. ...
Quantum complementarity
Davide Rolino, Paolo Perinotti, Alessandro Tosini·Oct 12, 2025
We propose an operational definition of complementarity, pinning down the concept originally introduced by Bohr. Two properties of a system are considered complementary if they cannot be simultaneously well defined. We further show that, within quant...