Please use this identifier to cite or link to this item:
https://ah.lib.nccu.edu.tw/handle/140.119/140388
題名: | Digital quantum simulation of dynamical topological invariants on near-term quantum computers | 作者: | 許琇娟 Hsu, Hsiu-Chuan Chang, Huai-Chun |
貢獻者: | 應物所 | 關鍵詞: | Quantum simulation; Berry phase; Topological insulator | 日期: | Jan-2022 | 上傳時間: | 24-Jun-2022 | 摘要: | Programmable quantum processors are suitable platforms for simulating quantum systems, of which topological phases are of particular interest. We simulate the quench dynamics of a one-dimensional system on IBM Q devices. The topological properties of the dynamics are described by the dynamical topological invariants, the dynamical winding number, and the time-dependent Berry phase, which are simulated with the quantum circuit model. The results show that despite the noise present in the current quantum computers, the dynamical topological invariants are robust. Moreover, to investigate the influence of open quantum system, we analytically solve the master equation in Lindblad form and show that the dynamical winding number and the change in Berry phase are not affected by the dissipation. This study sheds light on the robustness of topological phases on the noisy intermediate-scale quantum computers. | 關聯: | Quantum information processing, 21, Article number: 41 | 資料類型: | article | DOI: | https://doi.org/10.1007/s11128-021-03362-z |
Appears in Collections: | 期刊論文 |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
index.html | 106 B | HTML2 | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.