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Updated: Jan 15, 2026

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通过量子跳跃来模拟时间局部量子主方程的变量量子模拟.
Zhihao Lan1, Jie Liu2, Zhenyu Li2
1State Key Laboratory of Physical Chemistry of Solid Surfaces, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People's Republic of China.
The Journal of chemical physics
|October 9, 2025
概括
本研究介绍了一种量子算法,用于模拟复杂的开放量子系统,克服经典计算的限制. 该方法耐噪声,并准确地模拟当前量子处理器上的量子动力学.
科学领域:
- 量子计算是一种量子计算.
- 量子信息科学 量子信息科学
- 计算物理 计算物理
背景情况:
- 具有强合和环境内存的开放量子系统在计算上对经典方法具有挑战.
- 模拟这些系统对于理解复杂的量子动力学至关重要.
研究的目的:
- 开发一种可变量子算法,用于在杂的中级量子处理器 (NISQ) 上解决时局部量子主方程.
- 为了在NISQ时代实现开放量子系统的可扩展模拟.
主要方法:
- 利用对向量的随机施罗丁格方程来解开时间局部量子主方程.
- 采用了麦克拉克兰的原理,用于确定性演化和奇数值分解,用于随机跳跃实现.
- 综合哈达马德测试用于测量跳跃率和降低密度矩阵,以及对轨迹的无进化采样.
主要成果:
- 量子算法成功地在经典模拟器和超导量子处理器上模拟了Redfield和第四阶时间局部非马科夫主方程.
- 该协议证明了对现实的硬件噪声的弹性.
- 准确地捕捉了开放量子力学的关键特征,包括非马科夫振荡和强合效应.
结论:
- 拟议的变量量子算法为模拟复杂的开放量子系统提供了一个实用和可扩展的途径.
- 这项工作提升了NISQ设备在解决以前难以解决的量子动力学问题的能力.
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