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 simulation of the Hubbard model on a graphene hexagon: strengths of IQPE and noise constraints
Mohammad Mirzakhani, Kyungsun Moon·Jun 5, 2025
Quantum computing offers transformative potential for simulating real-world materials, providing a powerful platform to investigate complex quantum systems across quantum chemistry and condensed matter physics. In this work, we leverage this capabili...
Impact of Temporally Correlated Dephasing Noise on the Fidelity of the 2-Qubit Deutsch-Jozsa Algorithm
Souvik Ghosh·Jun 5, 2025
Understanding the influence of realistic noise on quantum algorithms is paramount for the advancement of quantum computation. While often modeled as Markovian, environmental noise in quantum systems frequently exhibits temporal correlations, leading ...
Exponential distillation of dominant eigenproperties
Bence Bakó, Tenzan Araki, Bálint Koczor·Jun 4, 2025
Estimating observable expectation values in eigenstates of quantum systems has a broad range of applications and is an area where early fault-tolerant quantum computers may provide practical quantum advantage. We develop a hybrid quantum-classical al...
Efficient Quantum Gibbs Sampling with Local Circuits
D. Hahn, R. Sweke, Abhinav Deshpande +1 more·Jun 4, 2025
The problem of simulating the thermal behavior of quantum systems remains a central open challenge in quantum computing. Unlike well-established quantum algorithms for unitary dynamics, \emph{provably efficient} algorithms for preparing thermal state...
RhoDARTS: Differentiable Quantum Architecture Search with Density Matrix Simulations
Swagat Kumar, Jan-Nico Zaech, C. M. Wilmott +1 more·Jun 4, 2025
Variational Quantum Algorithms (VQAs) are a promising approach to leverage Noisy Intermediate-Scale Quantum (NISQ) computers. However, choosing optimal quantum circuits that efficiently solve a given VQA problem is a non-trivial task. Quantum Archite...
Experimental Detection of Dissipative Quantum Chaos
Kristian Wold, Zitian Zhu, Feitong Jin +13 more·Jun 4, 2025
More than four decades of research on chaos in isolated quantum systems have led to the identification of universal signatures -- such as level repulsion and eigenstate thermalization -- that serve as cornerstones in our understanding of complex quan...
A Unitary Encoder for Surface Codes
Pei-Kai Tsai, S. Puri·Jun 4, 2025
The surface code is a promising candidate for fault-tolerant quantum computation and has been implemented in many quantum hardware platforms. In this work, we propose a new non-local unitary circuit to encode a surface code state based on a code conv...
Low frequency phase stabilization and phase tuning of an optical lattice with a variable period
P. Aksentsev, V. A. Khlebnikov, I. Cojocaru +12 more·Jun 4, 2025
Optical lattices play a significant role in the field of cold atom physics, particularly in quantum simulations. Varying the lattice period is often a useful feature, but it presents the challenge of maintaining lattice phase stability in both statio...
Simulating fluid vortex interactions on a superconducting quantum processor
Ziteng Wang, Jiarun Zhong, Ke Wang +8 more·Jun 4, 2025
Vortex interactions are commonly observed in atmospheric turbulence, plasma dynamics, and collective behaviors in biological systems. However, accurately simulating these complex interactions is highly challenging due to the need to capture fine-scal...
Make Some Noise! Measuring Noise Model Quality in Real-World Quantum Software
S. R. Maschek, J. Schwitalla, Maja Franz +1 more·Jun 4, 2025
Noise and imperfections are among the prevalent challenges in quantum software engineering for current NISQ systems. They will remain important in the post-NISQ area, as logical, error-corrected qubits will be based on software mechanisms. As real qu...
Flagged Extensions and Numerical Simulations for Quantum Channel Capacity: Bridging Theory and Computation
Vahid Nourozi·Jun 3, 2025
I will investigate the capacities of noisy quantum channels through a combined analytical and numerical approach. First, I introduce novel flagged extension techniques that embed a channel into a higher-dimensional space, enabling single-letter upper...
Convergence and efficiency proof of quantum imaginary time evolution for bounded order systems
T. Hartung, Karl Jansen·Jun 3, 2025
Many current and near-future applications of quantum computing utilise parametric families of quantum circuits and variational methods to find optimal values for these parameters. Solving a quantum computational problem with such variational methods ...
Scalable Distributed Memory Implementation of the Quasi-Adiabatic Propagator Path Integral
R. Ovcharenko, Xiangyu Xu, B. Fingerhut·Jun 3, 2025
The accurate simulation of dissipative quantum dynamics subject to a non-Markovian environment poses persistent numerical challenges, in particular for structured environments where sharp mode resonances induce long-time system bath correlations. We ...
Exceeding the Parametric Drive Strength Threshold in Nonlinear Circuits
Mingkang Xia, Crist'obal Lled'o, Matthew Capocci +7 more·Jun 3, 2025
Superconducting quantum circuits rely on strong drives to implement fast gates, high-fidelity readout, and state stabilization. However, these drives can induce uncontrolled excitations, so-called"ionization", that compromise the fidelity of these op...
Stacking the odds: full-stack quantum system design space exploration
Hila Safi, Medina Bandic, Christoph Niedermeier +3 more·Jun 3, 2025
Design space exploration (DSE) plays an important role in optimising quantum circuit execution by systematically evaluating different configurations of compilation strategies and hardware settings. In this paper, we conduct a comprehensive investigat...
Quantum Complexity and Chaos in Many-Qudit Doped Clifford Circuits
Beatrice Magni, Xhek Turkeshi·Jun 2, 2025
We investigate the emergence of quantum complexity and chaos in doped Clifford circuits acting on qudits of odd prime dimension $d$. Using doped Clifford Weingarten calculus and a replica tensor network formalism, we derive exact results and perform ...
Synthesis of discrete-continuous quantum circuits with multimodal diffusion models
Florian Fürrutter, Zohim Chandani, Ikko Hamamura +2 more·Jun 2, 2025
Efficiently compiling quantum operations remains a major bottleneck in scaling quantum computing. Today's state-of-the-art methods achieve low compilation error by combining search algorithms with gradient-based parameter optimization, but they incur...
hqQUBO: A Hybrid-querying Quantum Optimization Model Validated with 16-qubits on an Ion Trap Quantum Computer for Life Science Applications
Rong Chen, Quanxin Mei, Wending Zhao +5 more·Jun 2, 2025
AlphaFold has achieved groundbreaking advancements in protein structure prediction, exerting profound influence across biology, medicine, and drug discovery. However, its reliance on multiple sequence alignment (MSA) is inherently time-consuming due ...
Quantum Ensembling Methods for Healthcare and Life Science
Kahn Rhrissorrakrai, Kathleen E. Hamilton, Prerana Bangalore Parthsarathy +4 more·Jun 2, 2025
Learning on small data is a challenge frequently encountered in many real-world applications. In this work we study how effective quantum ensemble models are when trained on small data problems in healthcare and life sciences. We constructed multiple...
Quantum-Classical Embedding via Ghost Gutzwiller Approximation for Enhanced Simulations of Correlated Electron Systems
I. Chen, Aleksei Khindanov, C. Salazar +6 more·Jun 1, 2025
Simulating correlated materials on present-day quantum hardware remains challenging due to limited quantum resources. Quantum embedding methods offer a promising route by reducing computational complexity through the mapping of bulk systems onto effe...