Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
AriaQuanta: A Quantum Software for Quantum Computing
A. Cheraghi, H. Yeganeh·Apr 8, 2025
We introduce AriaQuanta, a powerful and flexible tool for designing, simulating, and implementing quantum circuits. This open-source software is designed to make it easy for users of all experience levels to learn and use quantum computing. The first...
Assessing Teleportation of Logical Qubits in a Distributed Quantum Architecture under Error Correction
John Stack, Ming Wang, Frank Mueller·Apr 8, 2025
Quantum computing is facing challenges in terms of scaling to thousands of qubits and implementing quantum error correction (QEC). Scaling efforts focus on connecting multiple smaller quantum devices (nodes) in a distributed manner. Non-local CNOTs a...
Scalable low-latency entanglement distribution for distributed quantum computing
Jiapeng Zhao, Yang Xu, Xiyuan Lu +5 more·Apr 7, 2025
Practical distributed quantum computing and error correction require quantum networks with high-qubit-rate, high-fidelity, and low-reconfiguration-latency. Unfortunately, current approaches are limited by fundamental constraints: single-channel entan...
Fast and direct preparation of a genuine lattice BEC via the quantum Mpemba effect
Philipp Westhoff, Sebastian Paeckel, Mattia Moroder·Apr 7, 2025
We demonstrate that dissipative state preparation protocols in many-body systems can be substantially accelerated via the quantum Mpemba effect. Our approach exploits weak symmetries to analytically identify a class of simple, experimentally-realizab...
Weighted Approximate Quantum Natural Gradient for Variational Quantum Eigensolver
Chenyu Shi, Vedran Dunjko, Hao Wang·Apr 7, 2025
The variational quantum eigensolver (VQE) is one of the most prominent algorithms using near-term quantum devices, designed to find the ground state of a Hamiltonian. In VQE, a classical optimizer iteratively updates the parameters in the quantum cir...
Unified speed limits in classical and quantum dynamics via temporal Fisher information
Tomohiro Nishiyama, Yoshihiko Hasegawa·Apr 7, 2025
The importance of Fisher information is increasing in nonequilibrium thermodynamics, as it has played a fundamental role in trade-off relations such as thermodynamic uncertainty relations and speed limits. In this work, we investigate temporal Fisher...
Timelike Quantum Energy Teleportation
Kazuki Ikeda·Apr 7, 2025
We establish a novel quantum protocol called Timelike Quantum Energy Teleportation (TQET) between two separated parties $A$ and $B$, designed for transporting quantum energy across spacetime. The amount of energy gained through TQET is always greater...
Scalable projected entangled-pair state representation of random quantum circuit states
Sungjin Lee, H. Choi, Daniel Donghyon Ohm +1 more·Apr 7, 2025
Classical simulation of a programmable quantum processor is crucial in identifying the threshold of a quantum advantage. We demonstrate the simple update of projected entangled-pair states (PEPSs) in the Vidal gauge that represent random quantum circ...
Exponential Quantum Speedup for Simulating Classical Lattice Dynamics.
Xiantao Li·Apr 7, 2025
Simulating large-scale lattice dynamics remains a long-standing challenge in condensed matter and materials science, where mechanical and thermal behaviors arise from coupled vibrational modes. We introduce a quantum algorithm that reformulates gener...
Probabilistic imaginary-time evolution in state-vector-based and shot-based simulations and on quantum devices
Satoshi Ejima, K. Seki, B. Fauseweh +1 more·Apr 7, 2025
Imaginary-time evolution, an important technique in tensor network and quantum Monte Carlo algorithms on classical computers, has recently been adapted to quantum computing. In this study, we focus on probabilistic imaginary-time evolution (PITE) alg...
Quantum control of a random transverse Ising spin system
C. Whitty, E. Sherman, Xi Chen +1 more·Apr 7, 2025
We consider subspace transfer within the time-dependent one-dimensional quantum transverse Ising model, with random nearest-neighbor interactions and a transverse field. We run numerical simulations using a variational approach and the numerical GRAP...
Quantum phase classification via partial tomography-based quantum hypothesis testing
Akira Tanji, Hiroshi Yano, Naoki Yamamoto·Apr 5, 2025
Quantum phase classification is a fundamental problem in quantum many-body physics, traditionally approached using order parameters or quantum machine learning techniques such as quantum convolutional neural networks (QCNNs). However, these methods o...
CutQAS: Topology-aware quantum circuit cutting via reinforcement learning
Abhishek Sadhu, Aritra Sarkar, Akash Kundu·Apr 5, 2025
Simulating molecular systems on quantum processors has the potential to surpass classical methods in computational resource efficiency. The limited qubit connectivity, small processor size, and short coherence times of near-term quantum hardware cons...
Independent e- and m-anyon confinement in the parallel field toric code on non-square lattices
Simon M. Linsel, Lode Pollet, Fabian Grusdt·Apr 4, 2025
Kitaev's toric code has become one of the most studied models in physics and is highly relevant to the fields of both quantum error correction and condensed matter physics. Most notably, it is the simplest known model hosting an extended, deconfined ...
Reducing quantum error correction overhead using soft information
Joonas Majaniemi, Elisha S. Matekole·Apr 4, 2025
Imperfect measurements are a prevalent source of error across quantum computing platforms, significantly degrading the logical error rates achievable on current hardware. To mitigate this issue, rich measurement data referred to as soft information h...
Improved Strategies for Fermionic Quantum Simulation with Global Interactions
Thierry N. Kaldenbach, Erik Schultheis, Niklas Stewen +1 more·Apr 4, 2025
We present efficient quantum circuits for fermionic excitation operators tailored for ion trap quantum computers exhibiting the Mølmer-Sørensen (MS) gate. Such operators commonly arise in the study of static and dynamic properties in electronic struc...
Q-GEAR: Improving quantum simulation framework
Ziqing Guo, Jan Balewski, Ziwen Pan·Apr 4, 2025
The rapid execution of complex quantum circuit simulations is essential for validating theoretical algorithms, thereby facilitating their successful implementation on quantum hardware. Although mainstream CPU-based platforms for circuit simulations a...
Addressing ecological challenges from a quantum computing perspective
Maxime Clenet, M. Dion, F. G. Blanchet·Apr 4, 2025
With increased access to data and the advent of computers, the use of statistical tools and numerical simulations is becoming commonplace for ecologists. These approaches help improve our understanding of ecological phenomena and their underlying mec...
Towards a quantum synapse for quantum sensing
L. Pau·Apr 4, 2025
As a step in the architectural design of a quantum processing or sensing system with control and signaling, an attempt is made at putting in parallel functional properties of the random flows between neurons through electrical synapses, and quantum p...
Structured search algorithm: A quantum leap
Yash Prabhat, S. Thakur, Ankur Raina·Apr 4, 2025
We introduce a structured quantum search algorithm that leverages entanglement maps and a fixed-point method to minimize oracle query complexity in unsorted datasets. By partitioning qubits into rows based on their entanglement order, the algorithm e...