增加可提取的工作在小的Qubit景观
Unnati Akhouri1,2, Sarah Shandera1,2, Gaukhar Yesmurzayeva1,2
1Institute for Gravitation and the Cosmos, The Pennsylvania State University, University Park, PA 16802, USA.
Entropy (Basel, Switzerland)
|June 28, 2023
概括
这项研究探讨了在没有外部能量的情况下保持高自由能量的量子系统. 最小的四量子比特系统显示了可提取工作的增加,相关性使这种效应成为可能.
科学领域:
- 量子物理学的量子物理学
- 统计力学就是统计力学.
背景情况:
- 自然界的系统,包括生物系统,可以抵抗热化,保持高的自由能量状态.
- 了解这些非平衡系统对于量子热力学等领域至关重要.
研究的目的:
- 研究能够形成和维持高自由能量子系统的孤立量子系统.
- 为了确定最小的系统大小和增加可提取工作所需的条件.
主要方法:
- 根据保存定律模拟量子比特的量子系统,没有外部能量,热量,工作或交换.
- 在混合,不相关的状态中初始化量子比特.
- 在具有有限连接性和不均温度的共进化量子位景观上分析系统动态.
主要成果:
- 四个量子比特构成了最小的系统大小,其中有限的动态和初始条件允许增加子系统可提取的工作.
- 在八个量子比特格局中,有限的连接和不均的初始温度延长了对个别量子比特的可提取工作增加的间隔.
- 系统内发展的相关性被证明是使可提取工作的积极变化成为可能的关键.
结论:
- 孤立的量子系统可以表现出非平衡行为,导致增加自由能量和可提取工作.
- 系统架构,包括连接和初始状态分布,显著影响高自由能量状态的出现和持久性.
- 量子相关性在驱动孤立系统中的非平衡过程中发挥着基本作用.
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