Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
MindSpore Quantum: A User-Friendly, High-Performance, and AI-Compatible Quantum Computing Framework
Xusheng Xu, Jiangyu Cui, Zidong Cui +36 more·Jun 25, 2024
We introduce MindSpore Quantum, a pioneering hybrid quantum-classical framework with a primary focus on the design and implementation of noisy intermediate-scale quantum (NISQ) algorithms. Leveraging the robust support of MindSpore, an advanced open-...
YAQQ: yet another quantum quantizer design space exploration of quantum gate sets using novelty search
Aritra Sarkar, Akash Kundu, M. Steinberg +5 more·Jun 25, 2024
The standard model of quantum computation is based on quantum circuits, where the number and quality of the quantum gates composing the circuit influence the runtime and fidelity of the computation. The fidelity of the decomposition of quantum algori...
Using a feedback-based quantum algorithm to analyze the critical properties of the ANNNI model without classical optimization
G. Pexe, L. Rattighieri, A. Malvezzi +1 more·Jun 25, 2024
We investigate the critical properties of the Anisotropic Next-Nearest-Neighbor Ising (ANNNI) model using a feedback-based quantum algorithm (FQA). We demonstrate how this algorithm enables the computation of both ground and excited states without re...
All-optical production of Bose-Einstein condensates with 2 Hz repetition rate
Mareike Hetzel, Martin Quensen, Jan Simon Haase +1 more·Jun 24, 2024
Bose-Einstein condensates (BECs) of neutral atoms constitute an important quantum system for fundamental research and precision metrology. Many applications require short preparation times of BECs, for example, for optimized data acquisition rates in...
Can quantum computers do nothing?
Alexander Nico-Katz, Nathan Keenan, John Goold·Jun 24, 2024
Quantum computing platforms are subject to contradictory engineering requirements: qubits must be protected from mutual interactions when idling (‘doing nothing’), and strongly interacting when in operation. If idling qubits are not sufficiently prot...
Visualizing Quantum States: A Pilot Study on Problem Solving in Quantum Information Science Education
Jonas Bley, Eva Rexigel, Alda Arias +8 more·Jun 24, 2024
In the rapidly evolving interdisciplinary field of quantum information science and technology, a major obstacle is the need to understand advanced mathematics to solve complex problems. Current findings in educational research suggest that incorporat...
Collective Bit Flipping-Based Decoding of Quantum LDPC Codes
Dimitris Chytas, Nithin Raveendran, Bane Vasi'c·Jun 24, 2024
Quantum low-density parity-check (QLDPC) codes have been proven to achieve higher minimum distances at higher code rates than surface codes. However, this family of codes must cope with the stringent latency constraints imposed by quantum technology ...
A hybrid quantum-classical framework for computational fluid dynamics
Chuang-Chao Ye, Ning An, Teng-Yang Ma +5 more·Jun 24, 2024
Recent advancements in quantum computing provide opportunities to address the challenges of computational resource limitations in computational fluid dynamics (CFD). This work presents a hybrid quantum-classical CFD framework that leverages quantum l...
Probing universal critical scaling with scan density matrix renormalization group
Natalia Chepiga·Jun 24, 2024
We explore the universal signatures of quantum phase transitions that can be extracted with the density matrix renormalization group (DMRG) algorithm applied to quantum chains with a gradient. We present high-quality data collapses for the order para...
Integrated thermo-optic phase shifters for laser-written photonic circuits operating at cryogenic temperatures
F. Ceccarelli, J. Rakonjac, S. Grandi +3 more·Jun 24, 2024
Integrated photonics offers compact and stable manipulation of optical signals in miniaturized chips, with the possibility of changing dynamically their functionality by means of integrated phase shifters. Cryogenic operation of these devices is beco...
Validity condition for high-fidelity digitized quantum annealing
Alan C. Santos·Jun 24, 2024
Digitizing an adiabatic evolution is a strategy able to combine the good performance of gate-based quantum processors with the advantages of adiabatic algorithms, providing then a hybrid model for efficient quantum information processing. In this wor...
Simulation of Quantum Homomorphic Encryption: Demonstration and Analysis
Sohrab Ganjian, Connor Paddock, Anne Broadbent·Jun 24, 2024
Quantum homomorphic encryption (QHE), allows a quantum cloud server to compute on private data as uploaded by a client. We provide a proof-of-concept software simulation for QHE, according to the "EPR" scheme of Broadbent and Jeffery, for universal q...
Fault-tolerant embedding of quantum circuits on hardware architectures via swap gates
S. Chiew, Ezequiel Ignacio Rodr'iguez Chiacchio, Vishal Sharma +2 more·Jun 24, 2024
In near-term quantum computing devices, connectivity between qubits remain limited by architectural constraints. A computational circuit with given connectivity requirements necessary for multi-qubit gates have to be embedded within physical hardware...
Characterizing Grover search algorithm on large-scale superconducting quantum computers
M. AbuGhanem·Jun 23, 2024
Quantum computing is on the cusp of transforming the way we tackle complex problems, and the Grover search algorithm exemplifying its potential to revolutionize the search for unstructured large datasets, offering remarkable speedups over classical m...
Fast Virtual Gate Extraction For Silicon Quantum Dot Devices
Shize Che, Seongwoo Oh, Haoyun Qin +3 more·Jun 23, 2024
Silicon quantum dot devices stand as promising candidates for large-scale quantum computing due to their extended coherence times, compact size, and recent experimental demonstrations of sizable qubit arrays. Despite the great potential, controlling ...
Quantum computer specification for nuclear structure calculations
Ching-Hwa Wee, Meng-Hock Koh, Yung Szen Yap·Jun 23, 2024
Recent studies to solve nuclear structure problems using quantum computers rely on a quantum algorithm known as Variational Quantum Eigensolver (VQE). In this study, we calculate the correlation energy in Helium-6 using VQE, with a \textit{full-term}...
Nearly Optimal Circuit Size for Sparse Quantum State Preparation
Lvzhou Li, Jingquan Luo·Jun 23, 2024
Quantum state preparation is a fundamental and significant subroutine in quantum computing. In this paper, we conduct a systematic investigation on the circuit size (the total count of elementary gates in the circuit) for sparse quantum state prepara...
Repeater-like asynchronous measurement-device-independent quantum conference key agreement
Yu-Shuo Lu, Hua-Lei Yin, Yuan-Mei Xie +2 more·Jun 22, 2024
Quantum conference key agreement enables secure communication among multiple parties by leveraging multipartite entanglement, which is expected to play a crucial role in future quantum networks. However, its practical implementation has been severely...
Feedback-Driven Quantum Reservoir Computing for Time-Series Analysis
Kaito Kobayashi, Keisuke Fujii, Naoki Yamamoto·Jun 22, 2024
Quantum reservoir computing (QRC) is a highly promising computational paradigm that leverages quantum systems as a computational resource for nonlinear information processing. While its application to time-series analysis is eagerly anticipated, prev...
Perturbative Stability and Error-Correction Thresholds of Quantum Codes
Yaodong Li, N. O’Dea, V. Khemani·Jun 22, 2024
Topologically ordered phases are stable to local perturbations, and topological quantum error-correcting codes enjoy thresholds to local errors. We connect the two notions of stability by constructing classical statistical mechanics models for decodi...