Comparison of current quantum devices for quantum computing of Heisenberg spin chain dynamics

被引：1

作者：

Lotstedt, Erik ^{[1
]}

Yamanouchi, Kaoru ^{[1
,2
]}

机构：

[1] Univ Tokyo, Sch Sci, Dept Chem, 7-3-1 Hongo,Bunkyo Ku, Tokyo 1130033, Japan

[2] Univ Tokyo, Inst Attosecond Laser Facil, 7-3-1 Hongo,Bunkyo Ku, Tokyo 1130033, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2024年 / 836卷

关键词：

Quantum computing; NISQ devices; Time-dependent simulation; Heisenberg spin chain;

D O I：

10.1016/j.cplett.2023.140975

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We simulate the time-dependent dynamics of a chain of three interacting spins described by the Heisenberg XXX Hamiltonian using two types of different quantum computers: Quantinuum H1-1, a trapped-ion quantum computer, and ibm_prague, a superconducting qubit type quantum computer. The time evolution of the wave function is accomplished by the Suzuki-Trotter approximation. We find that very accurate results are obtained using H1-1 after applying error mitigation by renormalization of the time-dependent spin-state populations as well as using ibm_prague after renormalization, dynamical decoupling, Pauli twirling, and measurement error mitigation of the populations.

引用

页数：7

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