Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,522 papers in 12 months (-19% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Hybrid between biologically and quantum-inspired many-body states
Miha Srdinšek, Xavier Waintal·Jun 5, 2025
Deep neural networks can represent very different sorts of functions, including complex quantum many-body states. Tensor networks can also represent these states, have more structure and are easier to optimize. However, they can be prohibitively cost...
Orbit classification and analysis of qutrit graph states under local complementation and local scaling
Konstantinos-Rafail Revis, Hrachya Zakaryan, Zahra Raissi·Jun 5, 2025
Graph states and their entanglement properties are pivotal for the development of quantum computing and technologies. For qubits, local complementation, a graphical rule that connects all the equivalent states under Local Clifford (LC) operations, wa...
A Resource Allocating Compiler for Lattice Surgery
A. Robertson, Hao Gao, Y. Sanders·Jun 5, 2025
The emerging field of quantum resource estimation is aimed at providing estimates of the hardware requirements (`quantum resources') needed to execute a useful, fault-tolerant quantum computation. Given that quantum computers are intended to compete ...
Quantum error-correcting codes via inner products and error bases
Jorge R. Bolanos-Serv'in, Yuriko Pitones, J. I. Rios-Cangas·Jun 5, 2025
In this paper, we address the problem of state communication in finite-level quantum systems through noise-affected channels. Our approach is based on a self-consistent theory of decoding inner products associated with the code and error (or noise) b...
QuanUML: Towards A Modeling Language for Model-Driven Quantum Software Development
Xiaoyu Guo, Shinobu Saito, Jianjun Zhao·Jun 5, 2025
This paper introduces QuanUML, an extension of the Unified Modeling Language (UML) tailored for quantum software systems. QuanUML integrates quantum-specific constructs, such as qubits and quantum gates, into the UML framework, enabling the modeling ...
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...
Quantum circuits as a game: A reinforcement learning agent for quantum compilation and its application to reconfigurable neutral atom arrays
Kouhei Nakaji, J. Wurtz, Haozhe Huang +4 more·Jun 5, 2025
We introduce the"quantum circuit daemon"(QC-Daemon), a reinforcement learning agent for compiling quantum device operations aimed at efficient quantum hardware execution. We apply QC-Daemon to the move synthesis problem called the Atom Game, which in...
Full characterization of measurement-induced transitions of a superconducting qubit
T. Connolly, P. Kurilovich, V. D. Kurilovich +12 more·Jun 5, 2025
Repeated quantum non-demolition measurement is a cornerstone of quantum error correction protocols. In superconducting qubits, the speed of dispersive state readout can be enhanced by increasing the power of the readout tone. However, such an increas...
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...
A Hierarchy of Deviation from Complete Positivity and Optimal Entanglement Witnesses
Mohsen Kian·Jun 4, 2025
We introduce the \emph{CP-distance} to quantify the deviation of Hermitian linear maps from complete positivity, defined as the minimal depolarizing noise required to render a map completely positive. We derive a closed spectral formula for this dist...
Security analysis of orthogonal state attack on a high-speed quantum key distribution system
Jialei Su, Qingquan Peng, Jia-lin Chen +6 more·Jun 4, 2025
High-speed quantum key distribution (QKD) systems have achieved repetition frequencies above gigahertz through advanced technologies and devices, laying an important foundation for the deployment of high-key-rate QKD system. Although these advanced s...
An 11-qubit atom processor in silicon
Hermann Edlbauer, Junlian Wang, A. M. S. Huq +12 more·Jun 4, 2025
Phosphorus atoms in silicon represent a promising platform for quantum computing, as their nuclear spins exhibit coherence times over seconds1,2 with high-fidelity readout and single-qubit control3. By placing several phosphorus atoms within a radius...
Personalized Improvement of Standard Readout Error Mitigation using Low-Depth Circuits and Machine Learning
Melody Lee·Jun 4, 2025
Quantum computers have shown promise in improving algorithms in a variety of fields. The realization of these advancements is limited by the presence of noise and high error rates, which become prominent especially with increasing system size. Mitiga...
Limitations of quantum hardware for molecular energy estimation using VQE.
A. Carreras, Rom'an Or'us, David Casanova·Jun 4, 2025
Variational quantum eigensolvers (VQEs) are among the most promising quantum algorithms for solving electronic structure problems in quantum chemistry, particularly during the noisy intermediate-scale quantum (NISQ) era. In this study, we investigate...
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...
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...
Bridging Quantum Chemistry and MaxCut: Classical Performance Guarantees and Quantum Algorithms for the Hartree-Fock Method.
Alexis Ralli, Tim Weaving, Peter V. Coveney +1 more·Jun 4, 2025
In quantum chemistry, self-consistent field (SCF) algorithms define a nonlinear optimization problem, with both continuous and discrete components. In this work, we derive Hartree-Fock-inspired SCF algorithms that can be exactly written as a sequence...
Deep-learned error mitigation via partially knitted circuits for the variational quantum eigensolver
S. Cantori, Andrea Mari, David Vitali +1 more·Jun 4, 2025
The variational quantum eigensolver (VQE) is generally regarded as a promising quantum algorithm for near-term noisy quantum computers. However, when implemented with the deep circuits that are in principle required for achieving a satisfactory accur...
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...