Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Real-Time Scattering on Quantum Computers via Hamiltonian Truncation
J. Ingoldby, M. Spannowsky, Timur Sypchenko +2 more·May 6, 2025
We present a quantum computational framework using Hamiltonian Truncation (HT) for simulating real-time scattering processes in $(1+1)$-dimensional scalar $\phi^4$ theory. Unlike traditional lattice discretisation methods, HT approximates the quantum...
Digital quantum simulations of scattering in quantum field theories using W states
R. Farrell, Nikita A. Zemlevskiy, Marc Illa +1 more·May 6, 2025
High-energy particle collisions can convert energy into matter through the inelastic production of new particles. Quantum computers are an ideal platform for simulating the out-of-equilibrium dynamics of collisions and the formation of subsequent man...
Hole-spin qubits in germanium beyond the single-particle regime
Andrea Secchi, Gaia Forghieri, Paolo Bordone +3 more·May 5, 2025
The intense simulation efforts on hole-spin qubits in germanium have so far focused primarily on singly occupied quantum dots. Here, we theoretically investigate three-hole qubits in germanium and demonstrate that their performance can rival that of ...
One- and two-dimensional cluster states for topological phase simulation and measurement-based quantum computation
Tao Jiang, J. Cai, Junxiang Huang +152 more·May 4, 2025
Symmetry-protected topological (SPT) phases are fundamental features of cluster states, serving as key resources for measurement-based quantum computation (MBQC). Generating large-scale cluster states and verifying their SPT phases are essential step...
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...
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 ...
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...
An Efficient Decomposition of the Carleman Linearized Burgers' Equation
Reuben Demirdjian, Thomas Hogancamp, Daniel Gunlycke·May 1, 2025
Herein, we present a polylogarithmic decomposition method to load the matrix from the linearized 1-dimensional Burgers' equation onto a quantum computer. First, we use the Carleman linearization method to map the nonlinear Burgers' equation into an i...
Exploring the application of quantum technologies to industrial and real-world use cases
E. Osaba, Esther Villar-Rodriguez, I. Oregi·May 1, 2025
Recent advancements in quantum computing are leading to an era of practical utility, enabling the tackling of increasingly complex problems. The goal of this era is to leverage quantum computing to solve real-world problems in fields such as machine ...
Quantum circuit simulation of black hole evaporation and Maxwell demon interpretation
H. Hadi, A. R. Akbarieh, E. Saridakis·May 1, 2025
We suggest a quantum circuit model which simulates the black-hole evaporation process. In particular, Almheiri-Marolf-Polchinski-Sully (AMPS) paradox and the ER=EPR correspondence are reconsidered regarding our proposed model, which assumes a Maxwell...
Symmetry-adapted sample-based quantum diagonalization: Application to lattice model
Kosuke Nogaki, S. Backes, Tomonori Shirakawa +2 more·May 1, 2025
We present a symmetry-adapted extension of sample-based quantum diagonalization (SQD) that rigorously embeds space-group symmetry into the many-body subspace sampled by quantum hardware. The method is benchmarked on the two-leg ladder Hubbard model u...
A Path to Quantum Simulations of Topological Phases: (2+1)D Quantum Electrodynamics with Wilson Fermions
Sriram Bharadwaj, Emil Rosanowski, Simran Singh +5 more·Apr 30, 2025
Quantum simulation offers a powerful approach to studying quantum field theories, particularly (2+1)D quantum electrodynamics (QED$_3$) with Wilson fermions, which hosts a rich landscape of physical phenomena. A key challenge in lattice formulations ...
Heterogeneously error-corrected QRAMs
Ansh Singal, Kaitlin N. Smith·Apr 30, 2025
Quantum Random Access Memory (QRAM) holds the promise of enabling several large scale applications of quantum computers. However, designing fault tolerant QRAMs for large scale applications is still an open problem due to the poor error and resource ...
Optimal fermion-qubit mappings via quadratic assignment
Mitchell Chiew, Cameron Ibrahim, Ilya Safro +1 more·Apr 30, 2025
Simulation of fermionic systems is one of the most promising applications of quantum computers. It spans problems in quantum chemistry, high-energy physics and condensed matter. Underpinning the core steps of any quantum simulation algorithm, fermion...
Systematically improved potential energy surfaces via sinNN models and sparse grid sampling
Antoine Aerts·Apr 30, 2025
Accurate, global Potential Energy Surfaces (PES) expressed in sum-of-products (SOP) form are a prerequisite for efficient high-dimensional quantum dynamics simulations using the MCTDH method. This work introduces a methodology for constructing such s...
On the Efficacy of the Peeling Decoder for the Quantum Expander Code
Jefrin Sharmitha Prabhu, Abhinav Vaishya, Shobhit Bhatnagar +3 more·Apr 30, 2025
The problem of recovering from qubit erasures has recently gained attention as erasures occur in many physical systems such as photonic systems, trapped ions, superconducting qubits and circuit quantum electrodynamics. While several linear-time decod...
SPARO: Surface-code Pauli-based Architectural Resource Optimization for Fault-tolerant Quantum Computing
Shuwen Kan, Zefan Du, Chenxu Liu +5 more·Apr 30, 2025
Surface codes represent a leading approach for quantum error correction (QEC), offering a path towards universal fault-tolerant quantum computing (FTQC). However, efficiently implementing algorithms, particularly using Pauli-based computation (PBC) w...
Microwave-activated high-fidelity three-qubit gate scheme for fixed-frequency superconducting qubits
Kui Zhao, Wei Ma, Ziting Wang +5 more·Apr 30, 2025
Scalable superconducting quantum processors require balancing critical constraints in coherence, control complexity, and spectral crowding. Fixed-frequency architectures suppress flux noise and simplify control via all-microwave operations but remain...
PolyQROM: Orthogonal-Polynomial-Based Quantum Reduced-Order Model for Flow Field Analysis
Yu Fang, Cheng Xue, Tai-Ping Sun +10 more·Apr 30, 2025
Quantum computing promises exponential acceleration for fluid flow simulations, yet the measurement overhead required to extract flow features from quantum-encoded flow field data fundamentally undermines this advantage--a critical challenge termed t...
Using quantum annealing to generate test cases for cyber-physical systems
Hugo L. S. Araujo, Xinyi Wang, M. Mousavi +1 more·Apr 30, 2025
Quantum computing has emerged as a powerful tool to efficiently solve computational challenges, particularly in simulation and optimisation. However, hardware limitations prevent quantum computers from achieving the full theoretical potential. Among ...