Quantum computing for the Lipkin model with unitary coupled cluster and structure learning ansatz

作     者：Asahi Chikaoka Haozhao Liang 近岡旭;梁豪兆

作者机构：Department of PhysicsGraduate School of ScienceThe University of TokyoTokyo 113-0033Japan RIKEN Nishina CenterWako 351-0198Japan 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2022年第46卷第2期

页      面：131-139页

核心收录：

学科分类：07[理学] 08[工学] 070201[理学-理论物理] 081201[工学-计算机系统结构] 0702[理学-物理学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：the financial support of Advanced Leading Graduate Course for Photon Science the JSPS Grant-in-Aid for Early-Career Scientists (18K13549) the JSPS Grant-in-Aid for Scientific Research (S)(20H05648) 

主　　题：Lipkin model quantum computing variational quantum eigensolver 

摘      要：We report a benchmark calculation for the Lipkin model in nuclear physics with a variational quantum eigensolver in quantum *** attention is paid to the unitary coupled cluster(UCC)ansatz and structure learning(SL)ansatz for the trial wave *** with both the UCC and SL ansatz can reproduce the ground-state energy well;however,it is found that the calculation with the SL ansatz performs better than thatwith the UCC ansatz,and the SL ansatz has even fewer quantum gates than the UCC ansatz.