Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,393 papers in 12 months (-22% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Almost fault-tolerant quantum machine learning with drastic overhead reduction
Haiyue Kang, Younghun Kim, Eromanga Adermann +2 more·Jul 25, 2025
Errors in the current generation of quantum processors pose a significant challenge towards practical-scale implementations of quantum machine learning (QML) as they lead to trainability issues arising from noise-induced barren plateaus, as well as p...
Quantum-Efficient Convolution through Sparse Matrix Encoding and Low-Depth Inner Product Circuits
Mohammad Rasoul Roshanshah, Payman Kazemikhah, Hossein Aghababa·Jul 25, 2025
Convolution operations are foundational to classical image processing and modern deep learning architectures, yet their extension into the quantum domain has remained algorithmically and physically costly due to inefficient data encoding and prohibit...
Secure One-Sided Device-Independent Quantum Key Distribution Under Collective Attacks with Enhanced Robustness
Pritam Roy, Subhankar Bera, A. S. Majumdar·Jul 24, 2025
We study the security of a quantum key distribution (QKD) protocol under the one-sided device-independent (1sDI) setting, which assumes trust in only one party's measurement device. This approach effectively provides a balance between the experimenta...
Average-computation benchmarking for local expectation values in digital quantum devices
Flavio Baccari, Pavel Kos, Georgios Styliaris·Jul 24, 2025
As quantum devices progress towards a quantum advantage regime, they become harder to benchmark. A particularly relevant challenge is to assess the quality of the whole computation, beyond testing the performance of each single operation. Here we int...
Probing metric fluctuations with the spin of a particle in a quantum simulation
Jiannis K. Pachos, Patricio Salgado-Rebolledo, Martine Schut·Jul 24, 2025
Exploring potential empirical manifestations of quantum gravity is a challenging pursuit. In this study, we utilise a lattice representation of a (2+1)D massive gravity toy model interacting with Dirac fermions that can support specific spacetime flu...
Unconventional Thermalization of a Localized Chain Interacting with an Ergodic Bath
Konrad Pawlik, Nicolas Laflorencie, Jakub Zakrzewski·Jul 24, 2025
The study of many-body localized (MBL) phases intrinsically links spectral properties with eigenstate characteristics: localized systems exhibit Poisson level statistics and area-law entanglement entropy, while ergodic systems display volume-law enta...
Non-perturbative switching rates in bistable open quantum systems: from driven Kerr oscillators to dissipative cat qubits
Léon Carde, Ronan Gautier, Nicolas Didier +3 more·Jul 24, 2025
In this work, we use path integral techniques to predict the switching rate in a single-mode bistable open quantum system. While analytical expressions are well-known to be accessible for systems subject to Gaussian noise obeying classical detailed b...
Co-Optimization of Codon Usage and mRNA Secondary Structure Using Quantum Computing
Dimitris Alevras, Mihir Metkar, Triet Friedhoff +5 more·Jul 24, 2025
Co-optimizing mRNA sequences for both codon optimality and secondary structure is crucial for producing stable and efficacious mRNA therapeutics. Codon optimization, which adjusts nucleotide sequences to enhance translational efficiency, inherently i...
Three-qubit encoding in ytterbium-171 atoms for simulating 1+1D quantum chromodynamics
W. Huie, Cianán Conefrey-Shinozaki, Zhubing Jia +2 more·Jul 24, 2025
Simulating nuclear matter described by quantum chromodynamics using quantum computers is notoriously inefficient because of the assortment of quark degrees of freedom such as matter/antimatter, flavor, color, and spin. Here, we propose to address thi...
Hybrid quantum-classical algorithm for near-optimal planning in POMDPs
Gilberto Cunha, Alexandra Ramoa, A. Sequeira +2 more·Jul 24, 2025
Reinforcement learning (RL) provides a principled framework for decision-making in partially observable environments, which can be modeled as Markov decision processes and compactly represented through dynamic decision Bayesian networks. Recent advan...
NIST Post-Quantum Cryptography Standard Algorithms Based on Quantum Random Number Generators
Abel C. H. Chen·Jul 24, 2025
In recent years, the advancement of quantum computing technology has posed potential security threats to RSA cryptography and elliptic curve cryptography. In response, the National Institute of Standards and Technology (NIST) published several Federa...
An Initialization-free Quantum Algorithm for General Abelian Hidden Subgroup Problem
S. Kwon, Jeong San Kim·Jul 24, 2025
Hidden Subgroup Problem(HSP) seeks to identify an unknown subgroup H of a group G for a given injective function f defined on cosets of H. Here we present an initialization-free quantum algorithm for solving HSP in the case where G is a finite abelia...
Analysis of RF Surface Loss in a Planar 2D Qubit
A. Lunin, M. Bal, A. Murthy +3 more·Jul 24, 2025
The Josephson junction and shunt capacitor form a transmon qubit, which is the cornerstone of modern quantum computing platforms. For reliable quantum computing, it is important how long a qubit can remain in a superposition of quantum states, which ...
Quantum Machine Learning for Predicting Binding Free Energies in Structure-Based Virtual Screening
Pei-Kun Yang·Jul 24, 2025
In structure-based virtual screening, it is often necessary to evaluate the binding free energy of protein-ligand complexes by considering not only molecular conformations but also how these structures shift and rotate in space. The number of possibl...
Enhanced continuous-variable quantum key distribution protocol via adaptive signal processing
Özlem Erkılıç, Biveen Shajilal, Lorcán O. Conlon +7 more·Jul 24, 2025
Quantum key distribution (QKD) provides secure communication using quantum mechanics, with continuous-variable QKD (CV-QKD) being an attractive solution due to its compatibility with existing telecommunication technology. Its main drawback is suscept...
Programmable exploration of magnetic states in Lieb-kagome interpolated lattices
A. Lopez-Bezanilla, Pavel A. Dub, Avadh Saxena·Jul 24, 2025
We investigate a hybrid modeling framework in which a quantum annealer is used to simulate magnetic interactions in molecular qubit lattices inspired by experimentally realizable systems. Using phthalocyanine assemblies as a structurally constrained ...
Shallow quantum circuit for generating extremely low-entangled approximate state designs
Wonjun Lee, Minki Hhan, Gil Young Cho +1 more·Jul 23, 2025
Random quantum states have various applications in quantum information science. We discover a new ensemble of quantum states that serve as an $ε$-approximate state $t$-design while possessing extremely low entanglement, magic, and coherence. These re...
Resource-efficient Variational Compilation of Block-Encodings
Leon Rullkötter, Sebastian Weber, Vamshi Mohan Katukuri +2 more·Jul 23, 2025
Block-encoding operators are one of the essential components in quantum algorithms based on Quantum Signal Processing. Their gate complexity largely determines the overall gate complexity of the full algorithm. Using variational methods, we compile s...
Reconstructing the unitary part of a noisy quantum channel
Adrian Romer, Daniel M. Reich, Christiane P. Koch·Jul 23, 2025
We consider the problem of reconstructing the unitary describing the evolution of a quantum system, or quantum channel, from a set of input and output states. For ideal, fully coherent evolution, we show that the unitary can be reconstructed from two...
Quantum walks reveal topological flat bands, robust edge states and topological phase transitions in cyclic graphs
Dinesh Kumar Panda, Colin Benjamin·Jul 23, 2025
Topological phases, edge states, and flat bands in synthetic quantum systems are a key resource for topological quantum computing and noise-resilient information processing. We introduce a scheme based on step-dependent quantum walks on cyclic graphs...