Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Intrinsic non-Markovian magnetisation dynamics
Felix Hartmann, Vivek Unikandanunni, Matias Bargheer +3 more·Dec 8, 2025
Memory effects arise in many complex systems, from protein folding, to the spreading of epidemics and financial decisions. While so-called non-Markovian dynamics is common in larger systems with interacting components, observations in fundamental phy...
DBMC-aNOMAly: Asynchronous NOMA with Pilot-Symbol Optimization Protocol for Diffusion-Based Molecular Communication Networks
Alexander Wietfeld, Wolfgang Kellerer·Dec 8, 2025
Multiple access (MA) schemes can enable cooperation between multiple nodes in future diffusion-based molecular communication (DBMC) networks. Non-orthogonal MA for DBMC networks (DBMC-NOMA) is a promising option for efficient simultaneous MA using a ...
A proof-of-principle experiment on the spontaneous symmetry breaking machine and numerical estimation of its performance on the $K_{2000}$ benchmark problem
Toshiya Sato, Takashi Goh·Dec 8, 2025
In a previous paper, we proposed a unique physically implemented type simulator for combinatorial optimization problems, called the spontaneous symmetry breaking machine (SSBM). In this paper, we first report the results of experimental verification ...
Simulating general noise nearly as cheaply as Pauli noise
Mark Myers, Mariesa H. Teo, Rajesh Mishra +2 more·Dec 8, 2025
Stabilizer simulation of Clifford quantum circuits - error-correction circuits, Clifford subroutines, etc. - on classical computers has played a central role in our understanding of circuit performance. The stabilizer description, however, restricts ...
Quantum geometrical effects in non-Hermitian systems
Anton Montag, Tomoki Ozawa·Dec 8, 2025
We explore the relation between quantum geometry in non-Hermitian systems and physically measurable phenomena. We highlight various situations in which the behavior of a non-Hermitian system is best understood in terms of quantum geometry, namely the...
Local Reversibility and Divergent Markov Length in 1+1-D Directed Percolation
Yu-Hsueh Chen, Tarun Grover·Dec 8, 2025
Recent progress in open many-body quantum systems has highlighted the importance of the Markov length, the characteristic scale over which conditional correlations decay. It has been proposed that non-equilibrium phases of matter can be defined as eq...
Beam search decoder for quantum LDPC codes
Min Ye, Dave Wecker, Nicolas Delfosse·Dec 8, 2025
We propose a decoder for quantum low density parity check (LDPC) codes based on a beam search heuristic guided by belief propagation (BP). Our beam search decoder applies to all quantum LDPC codes and achieves different speed-accuracy tradeoffs by tu...
Suppressing Fast Dipolar Noise in Solid-State Spin Qubits
Jaime García Oliván, Ainitze Biteri-Uribarren, Oliver T. Whaites +1 more·Dec 7, 2025
Spin qubit coherence is a fundamental resource for the realization of quantum technologies. For solid-state platforms, spin decoherence is dominated by the magneto-active environment in the lattice, limiting their applicability. While standard dynami...
Physics-Informed Generative Machine Learning for Accelerated Quantum-centric Supercomputing
Chayan Patra, Dibyendu Mondal, Sonaldeep Halder +4 more·Dec 7, 2025
Quantum centric supercomputing (QCSC) framework, such as sample-based quantum diagonalization (SQD) holds immense promise toward achieving practical quantum utility to solve challenging problems. QCSC leverages quantum computers to perform the classi...
Maximum Independent Set via Probabilistic and Quantum Cellular Automata
Federico Dell'Anna, Matteo Grotti, Vito Giardinelli·Dec 7, 2025
We study probabilistic cellular automata (PCA) and quantum cellular automata (QCA) as frameworks for solving the Maximum Independent Set (MIS) problem. We first introduce a synchronous PCA whose dynamics drives the system toward the manifold of maxim...
Real-Time Dynamics in Two Dimensions with Tensor Network States via Time-Dependent Variational Monte Carlo
Yantao Wu, Jannes Nys·Dec 7, 2025
Reliably simulating two-dimensional many-body quantum dynamics with projected entangled pair states (PEPS) has long been a difficult challenge. In this work, we overcome this barrier for low-energy quantum dynamics by developing a stable and efficien...
Enhancing ground-state interaction strength of neutral atoms via Floquet stroboscopic dynamics
Y. Wei, M. Artoni, G. C. La Rocca +2 more·Dec 7, 2025
Neutral atom systems are promising platforms for quantum simulation and computation, owing to their long coherence times. However, their intrinsically weak ground-state interactions pose a major limitation to the advancement of scalable quantum simul...
Virtual Qudits for Simon's Problem: Dimension-Lifted Algorithms on Qubit Hardware
Abed Semre, Steven Frankel·Dec 7, 2025
Simon's problem admits an exponential quantum speedup, but current quantum devices support only qubits. This work introduces a general construction for simulating qudit versions of Simon's algorithm on qubit hardware by defining virtual qudits implem...
Non-Orthogonal Multiple Access-Based Continuous-Variable Quantum Key Distribution: Secret Key Rate Analysis and Power Allocation
Zhichao Dong, Xiaolin Zhou, Huang Peng +3 more·Dec 7, 2025
We address the multi-user quantum key distribution (QKD) problem under malicious quantum attacks, which is critical for realizing a large-scale quantum Internet. This paper maximizes the sum secret key rate (SKR) of a novel uplink non-orthogonal mult...
Non-Orthogonal Multiple-Access for Coherent-State Optical Quantum Communications Under Lossy Photon Channels
Zhichao Dong, Xiaolin Zhou, Yongkang Chen +3 more·Dec 7, 2025
Coherent states have been increasingly considered in optical quantum communications (OQCs). With the inherent non-orthogonality of coherent states, non-orthogonal multiple-access (NOMA) naturally lends itself to the implementation of multi-user OQC. ...
Solving larger Travelling Salesman Problem networks with a penalty-free Variational Quantum Algorithm
Daniel Goldsmith, Xing Liang, Dimitrios Makris +1 more·Dec 6, 2025
The Travelling Salesman Problem (TSP) is a well-known NP-Hard combinatorial optimisation problem, with industrial use cases such as last-mile delivery. Although TSP has been studied extensively on quantum computers, it is rare to find quantum solutio...
Nonreciprocal photon blockade in a spinning microwave magnomechanical system through kerr-magnon and optical parametric amplifier
S. K. Singh, Mohamed Amazioug, Jia-Xin Peng +3 more·Dec 6, 2025
Unconventional quantum antibunching, arising from quantum interference effects, represents a notable form of quantum correlation that has attracted significant attention for its ability to generate high-quality single-quantum sources. In this work, w...
Anubuddhi: A Multi-Agent AI System for Designing and Simulating Quantum Optics Experiments
S. K. Rithvik·Dec 6, 2025
We present Anubuddhi, a multi-agent AI system that designs and simulates quantum optics experiments from natural language prompts without requiring specialized programming knowledge. The system composes optical layouts by arranging components from a ...
Trade-offs between Quantum and Classical Resources in the Linear Combination of Unitaries
Kaito Wada, Hiroyuki Harada, Yasunari Suzuki +3 more·Dec 6, 2025
The randomized linear combination of unitaries (LCU) method with many applications to early fault-tolerant quantum computing algorithms has been proposed. This quantum algorithm computes the same expectation values as the original, fully coherent LCU...
MaxwellLink: A unified framework for self-consistent light-matter simulations
Xinwei Ji, Andres Felipe Bocanegra Vargas, Gang Meng +1 more·Dec 5, 2025
A major challenge in light-matter simulations is bridging the disparate time and length scales of electrodynamics and molecular dynamics. Current computational approaches often rely on heuristic approximations of either the electromagnetic (EM) or th...