对于非单元动力学的哈密尔顿模拟的线性组合与最佳状态准备成本
Dong An1, Jin-Peng Liu2,3,4, Lin Lin2,5,6
1Joint Center for Quantum Information and Computer Science, University of Maryland, College Park, Maryland 20742, USA.
Physical review letters
|October 28, 2023
概括
我们介绍了一种新的方法来模拟非单元量子动力学,使用线性组合的哈密尔顿模拟 (LCHS). 这种方法简化了复杂的量子模拟,并实现了最佳状态准备成本.
科学领域:
- 量子力学就是量子力学.
- 计算物理学的计算物理.
- 量子信息科学是一种量子信息科学.
背景情况:
- 非单元动态对于建模开放量子系统和各种量子信息任务至关重要.
- 现有的方法通常依赖于复杂的数学定理,如光谱映射定理,限制了它们的适用性或效率.
- 量子单一值转换是一种利用非单元过程的关键算法.
研究的目的:
- 开发一种简化和广泛适用的方法来模拟一般的非单元量子动力学.
- 为依赖光谱映射定理的现有方法提供替代方案.
- 证明拟议方法在模拟开放量子系统中的实用性.
主要方法:
- 提出一种基于线性组合的哈密尔顿模拟 (LCHS) 问题的方法.
- 避免需要扩展线性系统问题或光谱映射定理.
- 应用LCHS方法来模拟使用复杂吸收电位方法的开放量子动力学.
主要成果:
- 在LCHS方法有效模拟一个非单元动态的一般类别.
- 该方法实现了国家准备的最佳成本.
- 对于开放的量子动力学模拟,证明了接近最佳的参数依赖性.
结论:
- LCHS方法为模拟非单元量子过程提供了强大而高效的替代方案.
- 这种技术简化了复杂量子系统的模拟,包括开放量子动力学.
- 该方法在量子算法和计算物理中具有潜在的应用.
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