中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
MPS-VQE: A variational quantum computational chemistry simulator with matrix product states

文献类型:期刊论文

作者Xu, Zhiqian1; Fan, Yi2; Guo, Chu3; Shang, Honghui2
刊名COMPUTER PHYSICS COMMUNICATIONS
出版日期2024
卷号294页码:9
关键词Quantum computing Variational quantum eigensolver Matrix product state Quantum chemistry Parallel scalability
ISSN号0010-4655
DOI10.1016/j.cpc.2023.108897
英文摘要Quantum computing is attracting more and more attention in material and biological science. In the noisy intermediate-scale quantum (NISQ) computing era, the variational quantum eigensolver (VQE) is expected as an effective method to solve quantum chemistry problems which has potential quantum advantage. Classically simulating quantum algorithms plays a critical role in algorithmic development and the validation of noisy quantum devices before large-scale, fully fault-tolerant quantum computers are developed. However, most existing simulators are based on the state vector or density matrix representation of the quantum state which is faced with the memory bottleneck due to the exponential growth of memory requirement as the number of qubits increases. In this work, we present a VQE simulator based on the matrix product states (MPS) method from quantum many-body physics, and a detailed study of our MPS-VQE simulator in quantum chemistry applications. The memory requirement of MPS-VQE grows only polynomially and we demonstrate that accurate results can be obtained despite the truncation of the smallest singular values during the algorithm. A distributed parallelization scheme is also presented for massively parallel computer systems, and different implementations of the parallelization scheme based on the Julia language are benchmarked which demonstrate the efficiency and scalability of our method. Our method could open a new avenue towards large-scale classical simulation of quantum computational chemistry. (c) 2023 Elsevier B.V. All rights reserved.
WOS研究方向Computer Science ; Physics
语种英语
WOS记录号WOS:001086307200001
出版者ELSEVIER
源URL[http://119.78.100.204/handle/2XEOYT63/21097]  
专题中国科学院计算技术研究所期刊论文_英文
通讯作者Guo, Chu; Shang, Honghui
作者单位1.Chinese Acad Sci, Inst Comp Technol, Beijing 100190, Peoples R China
2.Univ Sci & Technol China, Key Lab Precis & Intelligent Chem, Hefei 230026, Anhui, Peoples R China
3.Hunan Normal Univ, Changsha 410081, Hunan, Peoples R China
推荐引用方式
GB/T 7714
Xu, Zhiqian,Fan, Yi,Guo, Chu,et al. MPS-VQE: A variational quantum computational chemistry simulator with matrix product states[J]. COMPUTER PHYSICS COMMUNICATIONS,2024,294:9.
APA Xu, Zhiqian,Fan, Yi,Guo, Chu,&Shang, Honghui.(2024).MPS-VQE: A variational quantum computational chemistry simulator with matrix product states.COMPUTER PHYSICS COMMUNICATIONS,294,9.
MLA Xu, Zhiqian,et al."MPS-VQE: A variational quantum computational chemistry simulator with matrix product states".COMPUTER PHYSICS COMMUNICATIONS 294(2024):9.

入库方式: OAI收割

来源:计算技术研究所

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