量子计算机上的量子轨迹的热力学
Marcel Cech1, Igor Lesanovsky1,2, Federico Carollo1
1Institut für Theoretische Physik, Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany.
Physical review letters
|October 6, 2023
概括
研究人员通过测量ancillas来定义量子轨迹来探索量子计算机上的开放系统动力学. 他们证明了偏向这些动态来增强所需的轨迹特性,显示了控制量子系统的潜力.
科学领域:
- 量子计算是一种量子计算.
- 量子动力学 量子动力学是什么?
- 开放的量子系统 开放的量子系统
背景情况:
- 噪音中等尺度量子 (NISQ) 设备为量子系统和动力学研究提供了一个平台.
- 模拟开放系统动态对于理解现实环境中的量子行为至关重要.
研究的目的:
- 在量子计算机上研究开放系统动态的模拟.
- 开发用于偏向量子轨迹向所需属性的方法.
- 探索在基于网关的量子计算机上实现非马科夫动力学的应用.
主要方法:
- 将一个感兴趣的系统与一个辅助器连接起来,然后进行辅助器测量以定义量子轨迹.
- 使用热力学类比来确定轨迹作为微状态.
- 在单一的,基于门的量子计算机上实现偏向动态.
主要成果:
- 展示了一种偏向开放系统动态的方法,以提高特定量子轨迹的概率.
- 在ibmq_jakarta量子计算机上展示了原则证明结果.
- 突出了在数字量子计算机上控制复杂的开放系统动态方面的挑战.
结论:
- 偏差量子轨迹为控制开放系统动态提供了一种新的方法.
- 开发的方法可以在当前的量子硬件上实现.
- 需要进一步的研究来解决更大的量子系统的可扩展性和控制复杂性.
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