Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Hardware-efficient quantum phase estimation via local control
Benjamin F. Schiffer, Dominik S. Wild, N. Maskara +2 more·Jun 23, 2025
Quantum phase estimation plays a central role in quantum simulation as it enables the study of spectral properties of many-body quantum systems. Most variants of the phase estimation algorithm require the application of the global unitary evolution c...
Reducing complexity of shadow process tomography with generalized measurements
Haigang Wang, Kan He·Jun 23, 2025
Quantum process tomography (QPT) is crucial for advancing quantum technologies, including quantum computers, quantum networks and quantum sensors. Shadow process tomography (SPT) utilizes the Choi isomorphism to map QPT to shadow state tomography (SS...
Existence of a robust optimal control process for efficient measurements in a two-qubit system
R. Rodríguez, Nam Nguyen, Elizabeth Behrman +2 more·Jun 23, 2025
The verification of quantum entanglement is essential for quality control in quantum communication. In this work, we propose an efficient protocol to directly verify the two-qubit entanglement of a known target state through a single expectation valu...
Robust Control of High-dimensional Quantum Systems against Coherent and Incoherent Errors
Yidian Fan, R. Wu·Jun 23, 2025
Toward scalable quantum computing, the control of quantum systems needs to be robust against both coherent errors induced by parametric uncertainties and incoherent errors induced by environmental decoherence. This poses significant challenges for hi...
Towards Quantum Simulation of Rotating Nuclei using Quantum Variational Algorithms
Dhritimalya Roy, Somnath Nag·Jun 22, 2025
Quantum variational algorithms (QVAs) are increasingly potent tools for simulating quantum many-body systems on noisy intermediate-scale quantum (NISQ) devices. This work examines the application of the Variational Quantum Eigensolver (VQE) to four p...
Quantum-Hybrid Support Vector Machines for Anomaly Detection in Industrial Control Systems
Tyler Cultice, Md. Saif Hassan Onim, Annarita Giani +1 more·Jun 21, 2025
Sensitive data captured by Industrial Control Systems (ICS) play a large role in the safety and integrity of many critical infrastructures. Detection of anomalous or malicious data, or Anomaly Detection (AD), with machine learning is one of many vita...
Quantum optimization with exact geodesic transport
André J. Ferreira-Martins, Renato M. S. Farias, Giancarlo Camilo +6 more·Jun 20, 2025
We introduce an architecture for variational quantum algorithms that can be efficiently trained via parameter updates along exact geodesics on the Riemannian state manifold. This features a parameter-optimal circuit ansatz which supersedes known quan...
A competitive NISQ and qubit-efficient solver for the LABS problem
Marco Sciorilli, Giancarlo Camilo, Thiago O. Maciel +3 more·Jun 20, 2025
Pauli Correlation Encoding (PCE) is as a qubit-efficient variational approach to combinatorial optimization problems. The method offers a polynomial reduction in qubit count and a super-polynomial suppression of barren plateaus. Here, we extend the P...
Fault Tolerance by Construction
Benjamin Rodatz, Boldizsár Poór, Aleks Kissinger·Jun 20, 2025
A key challenge in fault-tolerant quantum computing is synthesising and optimising circuits in a noisy environment, as traditional techniques often fail to account for the effect of noise on circuits. In this work, we propose and numerically verify a...
Abelian multi-cycle codes for single-shot error correction
Hsiang-Ku Lin, Pak Kau Lim, Alexey A. Kovalev +1 more·Jun 20, 2025
We construct a family of quantum low-density parity-check codes locally equivalent to higher-dimensional quantum hypergraph-product (QHP) codes. Similarly to QHP codes, the proposed codes have highly redundant sets of low-weight stabilizer generators...
Double Supersolid Phase in a Bosonic t-J-V Model with Rydberg Atoms
Kuangjie Chen, Yang Qi, Zheng Yan +1 more·Jun 20, 2025
Recent advances in Rydberg tweezer arrays bring novel opportunities for programmable quantum simulations beyond previous capabilities. In this work, we investigate a bosonic t-J-V model currently realized with Rydberg atoms. Through large-scale quant...
Obtaining continuum physics from dynamical simulations of Hamiltonian lattice gauge theories
Christopher F. Kane, Siddharth Hariprakash, Christian W. Bauer·Jun 20, 2025
Taking the continuum limit is essential for extracting physical observables from quantum simulations of lattice gauge theories. Achieving the correct continuum limit requires careful control of all systematic uncertainties, including those arising fr...
Qubit thermodynamics: Entropy production from nonadiabatic driving
P. Zhelnin, Lucas Johns, C. Argüelles·Jun 20, 2025
Adiabaticity is a cornerstone of many promising approaches to quantum control, computing, and simulation. In practice, however, there is always a trade-off. Although the deleterious effects of noise can be diminished by running a control schedule mor...
High-precision Quantum Phase Estimation on a Trapped-ion Quantum Computer
Andrew Tranter, Duncan Gowland, Kentaro Yamamoto +2 more·Jun 20, 2025
Emergent quantum computing technologies are widely expected to provide novel approaches in the simulation of quantum chemistry. Despite rapid improvements in the scale and fidelity of quantum computers, high resource requirements make the execution o...
Neutrino Telescope Event Classification on Quantum Computers
Pablo Rodriguez-Grasa, Pavel Zhelnin, Carlos A. Argüelles +1 more·Jun 19, 2025
Quantum computers represent a new computational paradigm with steadily improving hardware capabilities. In this article, we present the first study exploring how current quantum computers can be used to classify different neutrino event types observe...
Stability of thermal equilibrium in long-range quantum systems
Tim Möbus, Jorge Sánchez-Segovia, Álvaro M. Alhambra +1 more·Jun 19, 2025
Experimental realizations of spin models are irremediably prone to errors, which can propagate through the system corrupting experimental signals. We study how such errors affect the measurement of local observables in systems with long-range interac...
Fully convolutional 3D neural network decoders for surface codes with syndrome circuit noise
S. Gicev, L. Hollenberg, Muhammad Usman·Jun 19, 2025
Artificial Neural Networks (ANNs) are a promising approach to the decoding problem of Quantum Error Correction (QEC), but have observed consistent difficulty when generalising performance to larger QEC codes. Recent scalability-focused approaches hav...
Quantum Error Correction Exploiting Degeneracy to Approach the Hashing Bound
Kenta Kasai·Jun 18, 2025
Quantum error correction is essential for realizing scalable quantum computation. Among various approaches, low-density parity-check codes over higher-order Galois fields have shown promising performance due to their structured sparsity and compatibi...
Comparing a Few Qubit Systems for Superconducting Hardware Compatibility and Circuit Design Sensitivity in Qiskit
Hillol Biswas·Jun 17, 2025
The development of complex circuits for practical applications in the current quantum computing ecosystem is based on basic primitives such as Bell states, which provide superposition, entanglement, and coherence. The range of domain-specific quantum...
Breaking even with magic: demonstration of a high-fidelity logical non-Clifford gate
S. Dasu, Simon Burton, K. Mayer +7 more·Jun 17, 2025
Encoding quantum information to protect it from errors is essential for performing large-scale quantum computations. Performing a universal set of quantum gates on encoded states demands a potentially large resource overhead and minimizing this overh...