Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
The construction of a universal quantum gate set for the SU(2)k (k=5,6,7) anyon models via genetic optimized algorithm
Jiangwei Long, Yizhi Li, Jianxin Zhong +1 more·May 3, 2025
We study systematically numerical method into constructing a universal quantum gate set for topological quantum computation (TQC) using SU(2)k anyon models. The F-matrices and R-symbol were computed through the q-deformed representation theory of SU(...
Quantum Speedup for Hypergraph Sparsification
Chenghua Liu, Minbo Gao, Zhengfeng Ji +1 more·May 3, 2025
Graph sparsification serves as a foundation for many algorithms, such as approximation algorithms for graph cuts and Laplacian system solvers. As its natural generalization, hypergraph sparsification has recently gained increasing attention, with bro...
Monitoring the generation of photonic linear cluster states with partial measurements
Valentin Guichard, L. Vidro, Dario A Fioretto +11 more·May 3, 2025
Quantum states of light with many entangled photons are key resources for photonic quantum computing and quantum communication. In this work, we exploit a highly resource-efficient generation scheme based on a linear optical circuit embedding a fiber...
Quantum-Assisted Vehicle Routing: Realizing QAOA-based Approach on Gate-Based Quantum Computer
Talha Azfar, Osama Muhammad Raisuddin, Ruimin Ke +1 more·May 2, 2025
The Vehicle Routing Problem (VRP) is a fundamental combinatorial optimization challenge with broad applications in logistics and transportation. In this work, we present a quantum-assisted framework that integrates the Quantum Approximate Optimizatio...
Entropy-based analysis of single-qubit Otto and Carnot heat engines
Andrés Vallejo, Catty Lissardy, Santiago Silva-Gallo +2 more·May 2, 2025
From an entropy-based formulation of the first law of thermodynamics in the quantum regime, we investigate the performance of Otto-like and Carnot-like engines for a single-qubit working medium. Within this framework, the first law includes an additi...
Microwave-field quantum metrology with inherent robustness against detection losses enabled by Rydberg interactions
Stanisław Kurzyna, Bartosz Niewelt, Mateusz Mazelanik +3 more·May 2, 2025
Quantum sensing and metrology present one of the most promising near-term applications in the field of quantum technologies, with quantum sensors enabling unprecedented precision in measurements of electric, magnetic or gravitational fields and displ...
Bound-like State in a 1D Self-Similar Delta-Barrier Array
Jia-Chen Tang, Xu-Yang Hou, Yan He +1 more·May 2, 2025
We investigate a one-dimensional quantum system with a self-similar arrangement of delta-function potential barriers, exhibiting discrete scale invariance. The singular potential induces kinematically enforced symmetry breaking at $x=0$, decoupling t...
The Dance of the Sheared Eigenfunctions
J. Oliveira-Cony, Reinaldo de Melo e Souza, F. S. S. Rosa +1 more·May 2, 2025
In this work, we delve into the theory of sheared potentials in non-relativistic quantum mechanics. After defining what we mean by a family of sheared potentials, we consider these families in two particular but emblematic cases, the harmonic oscilla...
Quantum Support Vector Regression for Robust Anomaly Detection
Kilian Tscharke, Maximilian Wendlinger, Sebastian Issel +1 more·May 2, 2025
Anomaly Detection (AD) is critical in data analysis, particularly within the domain of IT security. In this study, we explore the potential of Quantum Machine Learning for application to AD with special focus on the robustness to noise and adversaria...
Distributed Quantum Circuit Cutting for Hybrid Quantum-Classical High-Performance Computing
Mar Tejedor, Berta Casas, Javier Conejero +2 more·May 2, 2025
Most quantum computers today are constrained by hardware limitations, particularly the number of available qubits, causing significant challenges for executing large-scale quantum algorithms. Circuit cutting has emerged as a key technique to overcome...
Engineering CSS surgery: compiling any CNOT in any code
Cl'ement Poirson, Joschka Roffe, R. Booth·May 2, 2025
We introduce a framework for implementing logic in CSS quantum error correction codes, building on the surgery methods of Cowtan and Burton [CB24]. Our approach offers a systematic methodology for designing and analysing surgery protocols. At the phy...
Qracle: A Graph-Neural-Network-Based Parameter Initializer for Variational Quantum Eigensolvers
Chi Zhang, Lei Jiang, Fangjing Chen·May 2, 2025
Variational Quantum Eigensolvers (VQEs) are a leading class of noisy intermediate-scale quantum (NISQ) algorithms with broad applications in quantum physics and quantum chemistry. However, as system size increases, VQE optimization is increasingly hi...
Divide-and-Conquer Simulation of Open Quantum Systems
Thiago Melo D. Azevedo, C. Almeida, Pedro Linck +2 more·May 2, 2025
One of the promises of quantum computing is to simulate physical systems efficiently. However, the simulation of open quantum systems - where interactions with the environment play a crucial role - remains challenging for quantum computing, as it is ...
Hardware-Efficient Universal Linear Transformations for Optical Modes in the Synthetic Time Dimension
Jasvith Raj Basani, Chaohan Cui, Jack Postlewaite +2 more·May 1, 2025
Recent progress in photonic information processing has spurred strong demand in scalable and reconfigurable photonic circuitry. Conventional spatially-meshed multi-port interferometers require a number of components growing quadratically with the sys...
Theory of quasiparticle generation by microwave drives in superconducting qubits
Shoumik Chowdhury, Max Hays, Shantanu R. Jha +4 more·May 1, 2025
Microwave drives play a central role in the control of superconducting quantum circuits, enabling qubit gates, readout, and parametric interactions. As the drive frequencies are typically an order of magnitude smaller than (twice) the superconducting...
Offset Charge Dependence of Measurement-Induced Transitions in Transmons
Mathieu Féchant, Marie Frédérique Dumas, Denis Bénâtre +9 more·May 1, 2025
A key challenge in achieving scalable fault tolerance in superconducting quantum processors is readout fidelity, which lags behind one- and two-qubit gate fidelity. A major limitation in improving qubit readout is measurement-induced transitions, als...
Probing excited-state dynamics of transmon ionization
Zihao Wang, Benjamin D'Anjou, Philippe Gigon +2 more·May 1, 2025
The fidelity and quantum nondemolition character of the dispersive readout in circuit QED are limited by unwanted transitions to highly excited states at specific photon numbers in the readout resonator. This observation can be explained by multiphot...
GULPS: Two-Qubit Gate Synthesis via Linear Programming for Heterogeneous Instruction Sets
Evan McKinney, Lev S. Bishop·May 1, 2025
Modern quantum hardware exposes heterogeneous two-qubit instruction sets through fractional, continuously parameterized, and per-pair native gates, but synthesis remains largely framed around CNOT and a small catalog of closed-form rules. We present ...
Improved Fermionic Scattering for the NISQ Era
Michael Hite·May 1, 2025
In the era of noisy intermediate scale quantum (NISQ) hardware, digital quantum computers are limited to shallow circuits on the order of a thousand layers due to system noise and qubit decoherence. Thus, every step of a simulation must be as efficie...
Relativistic orbital-free kinetic energy density functional for one-particle nuclear systems
X. H. Wu, Z. X. Ren, H. Z. Liang +1 more·May 1, 2025
This letter aims to derive the exact relativistic orbital-free kinetic energy density functional for one-particle nuclear systems in one-dimensional case. The kinetic energy is expressed as a functional of both vector and scalar densities. The functi...