Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Simulating non-Abelian statistics of parafermions with superconducting processor
Hongyu Wang, Xiong-jun Liu·Feb 27, 2025
Parafermions, which can be viewed as a fractionalized version of Majorana modes, exhibit profound non-Abelian statistics and emerge in topologically ordered systems, while their realization in experiment has been challenging. Here we propose a novel ...
Quantum low-density parity-check codes for erasure-biased atomic quantum processors
Laura Pecorari, G. Pupillo·Feb 27, 2025
Identifying the best families of quantum error correction (QEC) codes for near-term experiments is key to enabling fault-tolerant quantum computing. Ideally, such codes should have low overhead in qubit number, high physical error thresholds, and mod...
Linear optical quantum computing with a hybrid squeezed cat code
Shohei Kiryu, Kosuke Fukui, A. Okamoto +1 more·Feb 27, 2025
In recent years, squeezed cat codes with resilience to specific types of loss have been proposed as a step toward realizing fault-tolerant optical quantum computers. However, error correction for squeezed cat codes requires a strong nonlinearity, whi...
Digital-Analog quantum Rabi simulation in the Deep Strong Coupling Regime
Noureddine Rochdi, Rachid Ahl Laamara, Mohamed Bennai·Feb 26, 2025
We study the quantum Rabi model (QRM) in the deep strong coupling (DSC) regime. To capture the full dynamics of the QRM in the DSC regime, we implemented single-qubit rotations combined with integrated digital steps and qubit-bosonic blocks. This app...
Non-paraxial effects on laser-qubit operations
L. Gallagher, M. Mazzanti, Z. Ackerman +3 more·Feb 26, 2025
Tightly-focused laser beams, or optical tweezers, are essential for analogue and digital quantum simulation with neutral atoms and trapped ions. Despite this, most of the current intuition and theoretical treatment utilizes the paraxial approximation...
Comparison of encoding schemes for quantum computing of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>S</mml:mi><mml:mo>></mml:mo><mml:mn>1</mml:mn><mml:mi>/</mml:mi><mml:mn>2</mml:mn></mml:mrow></mml:math> spin chains
E. Lotstedt, Kaoru Yamanouchi·Feb 26, 2025
We compare four different encoding schemes for the quantum computing of spin chains with a spin quantum number $S>1/2$: a compact mapping, a direct (or one-hot) mapping, a Dicke mapping, and a qudit mapping. The three different qubit encoding schemes...
Dynamical cluster-based strategy for improving tensor network algorithms in quantum circuit simulations
Andrea De Girolamo, P. Facchi, P. Rabl +3 more·Feb 26, 2025
We optimize matrix-product state-based algorithms for simulating quantum circuits with finite fidelity, specifically the time-evolving block decimation (TEBD) and the density-matrix renormalization group (DMRG) algorithms, by exploiting the irregular...
Trotter error and gate complexity of the SYK and sparse SYK models
Yiyuan Chen, Jonas Helsen, Maris Ozols·Feb 25, 2025
The Sachdev--Ye--Kitaev (SYK) model is a prominent model of strongly interacting fermions that serves as a toy model of quantum gravity and black hole physics. In this work, we study the Trotter error and gate complexity of the quantum simulation of ...
Quantum Eigensolver for Non-Normal Matrices via Ground State Energy Estimation
Honghong Lin, Yun Shang·Feb 25, 2025
Large-scale eigenvalue problems pose a significant challenge to classical computers. While there are efficient quantum algorithms for unitary or Hermitian matrices, eigenvalue problems for non-normal matrices remain open in quantum computing. In this...
STQS: A Unified System Architecture for Spatial Temporal Quantum Sensing
Anastashia Jebraeilli, Chenxu Liu, Keyi Yin +4 more·Feb 25, 2025
We present STQS, a unified system architecture for spatiotemporal quantum sensing that interlaces four key quantum components: sensing, memory, communication, and computation. By employing a comprehensive gate-based framework, we systemically explore...
Optimal symbolic construction of matrix product operators and tree tensor network operators
Hazar cCakir, Richard M. Milbradt, C. Mendl·Feb 25, 2025
This research introduces an improved framework for constructing matrix product operators (MPOs) and tree tensor network operators (TTNOs), crucial tools in quantum simulations. A given (Hamiltonian) operator typically has a known symbolic"sum of oper...
Quantum-Annealing-Based Sum Rate Maximization for Multi-UAV-Aided Wireless Networks
Seon-Geun Jeong, Pham Dang Anh Duc, Q. Do +7 more·Feb 25, 2025
In wireless communication networks, it is difficult to solve many NP-hard problems owing to computational complexity and high cost. Recently, quantum annealing (QA) based on quantum physics was introduced as a key enabler for solving optimization pro...
Repeated interaction scheme for the quantum simulation of non-Markovian electron transfer dynamics.
Lea K. Northcote, Matthew S. Teynor, Gemma C Solomon·Feb 25, 2025
Quantum algorithms have the potential to revolutionize our understanding of open quantum systems in chemistry. In this work, we demonstrate that a repeated interaction model, which could serve as the foundation for a digital quantum algorithm, can ef...
A Computational Framework for Simulations of Dissipative Nonadiabatic Dynamics on Hybrid Oscillator-Qubit Quantum Devices.
Nam P Vu, Daniel Dong, Xiaohan Dan +3 more·Feb 25, 2025
We introduce a computational framework for simulating nonadiabatic vibronic dynamics on circuit quantum electrodynamics (cQED) platforms. Our approach leverages hybrid oscillator-qubit quantum hardware with midcircuit measurements and resets, enablin...
Programmable interferometer: An application in quantum channels
J. S. Araújo, K. Khan, A. S. Coelho·Feb 25, 2025
Quantum optics plays a crucial role in developing quantum computers on different platforms. In photonics, precise control over light's degrees of freedom, including discrete variables (polarization, photon number, orbital angular momentum) and contin...
Adaptive Quantum Scaling Model for Histogram Distribution-based Quantum Watermarking
Zheng Xing, C. Lam, Xiaochen Yuan +2 more·Feb 25, 2025
The development of quantum image representation and quantum measurement techniques has made quantum image processing research a hot topic. In this paper, a novel Adaptive Quantum Scaling Model (AQSM) is first proposed for scrambling watermark images....
Holonomic quantum computation: a scalable adiabatic architecture
Clara Wassner, Tommaso Guaita, Jens Eisert +1 more·Feb 24, 2025
Holonomic quantum computation exploits the geometric evolution of eigenspaces of a degenerate Hamiltonian to implement unitary evolution of computational states. In this work we introduce a framework for performing scalable quantum computation in ato...
Solving the Traveling Salesman Problem via Different Quantum Computing Architectures
Venkat Padmasola, Zhaotong Li, Rupak Chatterjee +1 more·Feb 24, 2025
We study the application of emerging photonic and quantum computing architectures to solving the Traveling Salesman Problem (TSP), a well-known NP-hard optimization problem. We investigate several approaches: Simulated Annealing (SA), Quadratic Uncon...
Emergent hydrodynamic mode on SU(2) plaquette chains and quantum simulation
Francesco Turro, Xiaojun Yao·Feb 24, 2025
We search for emergent hydrodynamic modes in real-time Hamiltonian dynamics of 2+1-dimensional SU(2) lattice gauge theory on a quasi-one-dimensional plaquette chain, by numerically computing symmetric correlation functions of energy densities on latt...
Qoala: an Application Execution Environment for Quantum Internet Nodes
B. V. D. Vecht, Atak Talay Yücel, Hana Jirovsk'a +1 more·Feb 24, 2025
Recently, a first-of-its-kind operating system for programmable quantum network nodes was developed, called QNodeOS. Here, we present an extension of QNodeOS called Qoala, which introduces (1) a unified program format for hybrid interactive classical...