MPSDynamics.jl:用于有限温度 (非马科夫式) 开放量子系统动态的张量子网络模拟
Thibaut Lacroix1, Brieuc Le Dé2, Angela Riva3
1Institut für Theoretische Physik und IQST, Universität Ulm, Albert-Einstein-Allee 11, D-89081 Ulm, Germany.
The Journal of chemical physics
|August 29, 2024
概括
MPSDynamics.jl简化了非马科夫动力学的量子系统模拟. 这个开源的 Julia 软件包使用矩阵产品状态来准确地进行零和有限温度模拟.
科学领域:
- 量子物理学的量子物理学
- 计算物理学的计算物理.
背景情况:
- 模拟开放的量子系统在计算上要求很高.
- 了解非马科夫动力学对于量子技术至关重要.
- 现有的方法通常在有限的温度下难以准确.
研究的目的:
- 介绍 MPSDynamics.jl,一个用于开放量子系统模拟的 Julia 包.
- 为研究非马科夫动力学提供一个易于使用的界面.
- 在零和有限温度下进行模拟.
主要方法:
- 使用数字精确的热化时间演变密度运算符与正规多项式算法 (TTRG).
- 使用张量网络表示,特别是矩阵产物状态 (MPS) 和树张量网络状态.
- 实施各种时间依赖变量原理 (TDVP) 方法,包括债券适应算法.
主要成果:
- MPSDynamics.jl提供了一个多功能平台来模拟复杂的量子动力学.
- 该包支持长距离交互,时间依赖的哈密尔顿式,以及多种环境合 (玻色/).
- 集成了强大的数据存储,日志记录和测量功能.
结论:
- MPSDynamics.jl为多体物理学和量子信息研究人员提供了一个强大而易于使用的工具.
- 该软件包允许准确,最先进的模拟非马科夫式开放量子系统.
- 它的特征促进了在各种物理系统中研究量子现象.
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