Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,643 papers in 12 months (-16% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Improved Algorithms for Quantum MaxCut via Partially Entangled Matchings
Anuj Apte, Eunou Lee, Kunal Marwaha +2 more·Apr 21, 2025
We introduce a $0.611$-approximation algorithm for Quantum MaxCut and a $\frac{1+\sqrt{5}}{4} \approx 0.809$-approximation algorithm for the EPR Hamiltonian of [arXiv:2209.02589]. A novel ingredient in both of these algorithms is to partially entangl...
Breaking Down Quantum Compilation: Profiling and Identifying Costly Passes
F. Zilk, Alessandro Tundo, Vincenzo De Maio +1 more·Apr 21, 2025
With the increasing capabilities of quantum systems, the efficient, practical execution of quantum programs is becoming more critical. Each execution includes compilation time, which accounts for substantial overhead of the overall program runtime. T...
Quantum simulation of interacting bosons with propagating waveguide photons
Xinyuan Zheng, M. J. Mehrabad, A. Dutt +2 more·Apr 21, 2025
Optical networks composed of interconnected waveguides are a versatile platform to simulate bosonic physical phenomena. Significant work in the non-interacting regime has demonstrated the capabilities of this platform to simulate many exotic effects ...
Branch-and-bound digitized counterdiabatic quantum optimization
Anton Simen, Sebastián V. Romero, Alejandro Gomez Cadavid +2 more·Apr 21, 2025
Branch-and-bound algorithms effectively solve combinatorial optimization problems, relying on the relaxation of the objective function to obtain tight lower bounds. While this is straightforward for convex objective functions, higher-order formulatio...
Geometric Learning Dynamics
Vitaly Vanchurin·Apr 20, 2025
We present a unified geometric framework for modeling learning dynamics in physical, biological, and machine learning systems. The theory reveals three fundamental regimes, each emerging from the power-law relationship $g \propto κ^α$ between the met...
Exact Duality at Low Energy in a Josephson Tunnel Junction Coupled to a Transmission Line
Luca Giacomelli, Michel H. Devoret, Cristiano Ciuti·Apr 20, 2025
We theoretically explore the low-energy behavior of a Josephson tunnel junction coupled to a finite-length, charge-biased transmission line and compare it to its flux-biased counterpart. For transmission lines of increasing length, we show that the l...
Quantum-Enhanced Weight Optimization for Neural Networks Using Grover's Algorithm
Stefan-Alexandru Jura, Mihai Udrescu·Apr 20, 2025
The main approach to hybrid quantum-classical neural networks (QNN) is employing quantum computing to build a neural network (NN) that has quantum features, which is then optimized classically. Here, we propose a different strategy: to use quantum co...
Photonic Qubit Gates via 1D Scattering from an Array of Two-Level Emitters
Evangelos Varvelis, J. Ankerhold·Apr 20, 2025
Photonic quantum computing offers a promising platform for quantum information processing, benefiting from the long coherence times of photons and their ease of manipulation. This paper presents a scheme for implementing a deterministic phase gate fo...
Estimating detector error models from syndrome data
R. Blume-Kohout, K. Young·Apr 20, 2025
Protecting quantum information using quantum error correction (QEC) requires repeatedly measuring stabilizers to extract error syndromes that are used to identify and correct errors. Syndrome extraction data provides information about the processes t...
Enhancing LLM-based Quantum Code Generation with Multi-Agent Optimization and Quantum Error Correction
Charlie Campbell, H. Chen, Wayne Luk +1 more·Apr 20, 2025
Multi-agent frameworks with Large Language Models (LLMs) have become promising tools for generating generalpurpose programming languages using test-driven development, allowing developers to create more accurate and robust code. However, their potent...
Binary cyclic codes from permutation polynomials over F2m\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\mathbb {F}}
M. Bose, P. Udaya, Abhay Kumar Singh·Apr 20, 2025
Binary cyclic codes having large dimensions and minimum distances close to the square-root bound are highly valuable in applications where high-rate transmission and robust error correction are both essential. They provide an optimal trade-off betwee...
Toward extracting scattering phase shift from integrated correlation functions on quantum computers
Peng Guo·Apr 20, 2025
Based on an established relation that relates the integrated correlation functions for a trapped system to the infinite volume scattering phase shifts through a weighted integral, we propose to extract the infinite volume scattering phase shifts thro...
Quantum cellular automata for word statistics facilitated by quantum correlations
Guanhua Chen, Yao Yao·Apr 20, 2025
We propose an iterative algorithm to investigate the cooperative evolution dominated by information encoded within state spaces in a random quantum cellular automaton. Inspired by the 2-gram model in statistical linguistics, the updates of quantum st...
Guess, SWAP, Repeat : Capturing Quantum Snapshots in Classical Memory
Debarshi Kundu, Avimita Chatterjee, Swaroop Ghosh·Apr 20, 2025
We introduce a novel technique that enables observation of quantum states without direct measurement, preserving them for reuse. Our method allows multiple quantum states to be observed at different points within a single circuit, one at a time, and ...
Refinement orders for quantum programs
Yuan Feng, Li Zhou·Apr 19, 2025
Refinement is a fundamental technique in the verification and systematic development of computer programs. It supports a disciplined approach to software construction through stepwise refinement, whereby an abstract specification is gradually transfo...
Application of an upsampling algorithm to quantum state preparation of continuous and discrete probability distributions
R. P. Erickson·Apr 19, 2025
Upsampling of time series data is often associated with classical fast Fourier transform analysis, but it also can be employed in the preparation of a quantum state vector. The quantum circuit of preparation derived from functional data sampled in th...
Quantum-Enhanced Reinforcement Learning for Power Grid Security Assessment
Benjamin M. Peter, M. Korkali·Apr 19, 2025
The increasingly challenging task of maintaining power grid security requires innovative solutions. Novel approaches using reinforcement learning (RL) agents have been proposed to help grid operators navigate the massive decision space and nonlinear ...
Short remarks on shallow unitary circuits
Jeongwan Haah·Apr 18, 2025
(i) We point out that every local unitary circuit of depth smaller than the linear system size is easily distinguished from a global Haar random unitary if there is a conserved quantity that is a sum of local operators. This is always the case with a...
Quantum Fisher Information and the Curvature of Entanglement
Zain H. Saleem, Anil Shaji, Anjala M Babu +4 more·Apr 18, 2025
We explore the relationship between quantum Fisher information (QFI) and the negative of the second derivative of concurrence with respect to the coupling between two qubits, referred to as the curvature of entanglement (CoE). We analyze in detail th...
Categories of abstract and noncommutative measurable spaces
Tobias Fritz, Antonio Lorenzin·Apr 18, 2025
Gelfand duality is a fundamental result that justifies thinking of general unital $C^*$-algebras as noncommutative versions of compact Hausdorff spaces. Inspired by this perspective, we investigate what noncommutative measurable spaces should be. Thi...