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

被引：8

作者：

Chikaoka, Asahi ^{[1
,2
]}

Liang, Haozhao ^{[1
,2
]}

机构：

[1] Univ Tokyo, Grad Sch Sci, Dept Phys, Tokyo 1130033, Japan

[2] RIKEN Nishina Ctr, Wako, Saitama 3510198, Japan

来源：

CHINESE PHYSICS C | 2022年 / 46卷 / 02期

关键词：

Lipkin model; quantum computing; variational quantum eigensolver; BODY APPROXIMATION METHODS; SOLVABLE MODEL; SHELL-MODEL; VALIDITY;

D O I：

10.1088/1674-1137/ac380a

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We report a benchmark calculation for the Lipkin model in nuclear physics with a variational quantum eigensolver in quantum computing. Special attention is paid to the unitary coupled cluster (UCC) ansatz and structure learning (SL) ansatz for the trial wave function. Calculations 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 that with the UCC ansatz, and the SL ansatz has even fewer quantum gates than the UCC ansatz.

引用

页数：9

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