Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantum Solution Framework for Finite-Horizon LQG Control via Block Encodings and QSVT
N. Dehaghani, Rafał Wiśniewski, A. Aguiar·Jul 14, 2025
We present a quantum algorithm for solving the finite-horizon discrete-time Linear Quadratic Gaussian (LQG) control problem, which integrates optimal control and state estimation in the presence of stochastic disturbances and noise. Classical approac...
Manarat: A scalable QICK-based control system for superconducting quantum processors supporting synchronized control of 10 flux-tunable qubits.
Agustin Silva, Alvaro Orgaz Fuertes·Jul 14, 2025
A scalable control architecture for superconducting quantum processors is essential as the number of qubits increases and coherent multi-qubit operations span beyond the capacity of a single control module. The Quantum Instrumentation Control Kit (QI...
Compilation of Qcrank Encoding Algorithm for a Dynamically Programmable Qubit Array Processor
Jan Balewski, Wan-Hsuan Lin, Anupam Mitra +5 more·Jul 14, 2025
Algorithm and hardware-aware compilation co-design is essential for the efficient deployment of near-term quantum programs. We present a compilation case-study implementing QCrank - an efficient encoding protocol for storing sequenced real-valued cla...
Quantum Convolution for Structure-Based Virtual Screening
Pei-Kun Yang·Jul 13, 2025
Structure-based virtual screening (SBVS) is a key computational strategy for identifying potential drug candidates by estimating the binding free energies (delta G_bind) of protein-ligand complexes. The immense size of chemical libraries, combined wi...
Quantum register based on double quantum dots in semiconductor nanowires
V. Vyurkov, Leonid Fedichkin, I. Semenikhin +3 more·Jul 11, 2025
An implementation of a universal solid-state quantum register based on electron space states in field-defined double quantum dots (DQD possesses one electron in two adjacent tunnel bound dots) in an ultrathin semiconductor nanowire is discussed. To s...
Advances in Machine Learning: Where Can Quantum Techniques Help?
Samarth Kashyap, R. Ramakrishnan, Kumari Jyoti +1 more·Jul 11, 2025
Quantum Machine Learning (QML) represents a promising frontier at the intersection of quantum computing and artificial intelligence, aiming to leverage quantum computational advantages to enhance data-driven tasks. This review explores the potential ...
Quantum Algorithm for Protein Structure Prediction Using the Face-Centered Cubic Lattice
Ruihao Li, Hakan Doga, Bryan Raubenolt +16 more·Jul 11, 2025
In this work, we present the first implementation of the face-centered cubic (FCC) lattice model for protein structure prediction with a quantum algorithm. Our motivation to encode the FCC lattice stems from our observation that the FCC lattice is mo...
Simulated non-Markovian Noise Resilience of Silicon-Based Spin Qubits with Surface Code Error Correction
Oscar Gravier, T. Ayral, Benoit Vermersch +2 more·Jul 11, 2025
We investigate the resilience of silicon-based spin qubits against non-Markovian noise within the framework of quantum error correction. We consider a realistic non-Markovian noise model that affects both the Larmor frequency and exchange energy of q...
Enhancing Decoding Performance using Efficient Error Learning
Pavithran Iyer, Aditya Jain, Stephen D. Bartlett +1 more·Jul 11, 2025
Lowering the resource overhead needed to achieve fault-tolerant quantum computation is crucial to building scalable quantum computers. We show that adapting conventional maximum likelihood (ML) decoders to a small subset of efficiently learnable phys...
Photonic processor benchmarking for variational quantum process tomography
Vladlen Galetsky, Paul Kohl, Janis Nötzel·Jul 11, 2025
We present a quantum-analogous experimental demonstration of variational quantum process tomography using an optical processor. This approach leverages classical one-hot encoding and unitary decomposition to perform the variational quantum algorithm ...
Approximate quantum circuit compilation for proton-transfer kinetics on quantum processors
Arseny Kovyrshin, Dilhan Manawadu, Edoardo Altamura +15 more·Jul 11, 2025
Proton transfer reactions are central to chemical and biological systems, where quantum effects—such as tunneling, delocalization, and zero-point motion—critically influence reaction kinetics. Classical methods that capture these phenomena scale poor...
A Neural-Guided Variational Quantum Algorithm for Efficient Sign Structure Learning in Hybrid Architectures
Mengzhen Ren, Yu-Cheng Chen, Yangsen Ye +3 more·Jul 10, 2025
Variational quantum algorithms hold great promise for unlocking the power of near-term quantum processors, yet high measurement costs, barren plateaus, and challenging optimization landscapes frequently hinder them. Here, we introduce sVQNHE, a neura...
Tangent Space Excitation Ansatz for Quantum Circuits
Ji-Yao Chen, Bo Huang, D. L. Zhou +3 more·Jul 10, 2025
Computing the excitation spectra of quantum many-body systems on noisy quantum devices is a promising avenue to demonstrate the practical utility of current quantum processors, especially as we move toward the ``megaquop''regime. For this task, here ...
Gate Freezing Method for Gradient-Free Variational Quantum Algorithms in Circuit Optimization
Joona V. Pankkonen, L. Ylinen, M. Raasakka +2 more·Jul 10, 2025
Parameterized quantum circuits (PQCs) are pivotal components of variational quantum algorithms (VQAs), which represent a promising pathway to quantum advantage in noisy intermediate-scale quantum (NISQ) devices. PQCs enable flexible encoding of quant...
Flexible Readout and Unconditional Reset for Superconducting Multiqubit Processors with Tunable Purcell Filters.
Yongxi Xiao, Da'er Feng, Xuemei Gu +18 more·Jul 9, 2025
Achieving high-fidelity qubit readout and reset while maintaining qubit coherence is crucial for quantum error correction and advanced quantum algorithms. Here, we design and experimentally demonstrate a scalable architecture based on frequency-tunab...
Low-depth quantum error correction via three-qubit gates in Rydberg atom arrays
Laura Pecorari, Sven Jandura, Guido Pupillo·Jul 8, 2025
Quantum error correction (QEC) requires the execution of deep quantum circuits with large numbers of physical qubits to protect information against errors. Designing protocols that can reduce gate and space-time overheads of QEC is therefore crucial ...
Variational quantum algorithm for generalized eigenvalue problems of non-Hermitian systems
Jiaxin Li, Zhaobing Fan, Hongmei Yao +5 more·Jul 7, 2025
Non-Hermitian generalized eigenvalue problems (GEPs) play a significant role in many practical applications, such as mechanical engineering. Based on the generalized Schur decomposition, we propose a variational quantum algorithm for solving the GEPs...
Quantum-Assisted Gaussian Process Regression Using Random Fourier Features
Cristian A. Galvis-Florez, Ahmad Farooq, Simo Särkkä·Jul 7, 2025
Probabilistic machine learning models are distinguished by their ability to integrate prior knowledge of noise statistics, smoothness parameters, and training data uncertainty. A common approach involves modeling data with Gaussian processes; however...
Machine-Learning-Enhanced Entanglement Detection Under Noisy Quantum Measurements
Mahmoud Mahdian, Ali Babapour-Azar, Zahra Mousavi +1 more·Jul 7, 2025
Quantum measurements are inherently noisy, hindering reliable entanglement detection and limiting the scalability of quantum technologies. While error mitigation and correction strategies exist, they often impose prohibitive resource overheads. Here,...
Quantum Simulation of Molecular Dynamics Processes─A Benchmark Study Using a Classical Simulator and Present-Day Quantum Hardware.
Tamila Kuanysheva, Brian Kendrick, Lukasz Cincio +1 more·Jul 3, 2025
We explore how the fundamental problems in quantum molecular dynamics can be modeled using classical simulators (emulators) of quantum computers and the actual quantum hardware available to us today. The list of problems we tackle includes propagatio...