单一能量测量的积分波动定理和非投射性测量
Daniel Alonso1, Antonia Ruiz García1
1Departamento de Física and IUdEA, Universidad de La Laguna, 38203 La Laguna, Tenerife, Spain.
Physical review. E
|September 19, 2023
概括
这项研究探讨了Jarzynski类型的工作平等,使用不清晰的测量,揭示了测量特征和诱导噪声如何影响结果. 这些发现突出了从投影性测量案例的偏差,特别是与非信息性测量.
科学领域:
- 量子热力学就是量子热力学.
- 统计力学就是统计力学.
- 测量理论 测量理论
背景情况:
- 贾辛斯基等式将非平衡工作与平衡时的自由能量联系起来.
- 在量子系统中,非投射性不清晰的测量非常重要.
- 了解监控量子系统中的工作是关键.
研究的目的:
- 在非投射性不清晰的测量下调查Jarzynski型的平等.
- 分析测量特征和噪声对工作关系的影响.
- 探索量子连贯性在这些过程中的作用.
主要方法:
- 根据能量测量和条件状态来定义工作.
- 分析Jarzynski等式对连贯性,计量器特性和噪声的依赖性.
- 调查基于能量频谱距离与计分辨率的比率的场景.
- 使用相对的连贯性量化连贯性.
主要成果:
- 贾辛斯基等式受到连贯性,计量器属性和诱导噪声的修改.
- 噪声效应与投射性测量不同,通常引入乘法因子.
- 与能量频谱间距相对的测量分辨率决定了偏差.
- 非信息性测量可以导致工作关系的纠正.
结论:
- 不清晰的测量引入了Jarzynski类型等式的复杂性.
- 测量装置的特性显著影响热力学关系.
- 连贯性在理解监控量子系统中的工作波动方面发挥着至关重要的作用.
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