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在凝聚力辅助转换中,凝聚力损失的部分恢复

Zhaobing Fan¹, Zewen Shan¹, Haitao Ma¹

¹School of Mathematical Sciences, Harbin Engineering University, Harbin 150001, China.

Entropy (Basel, Switzerland)

|October 28, 2023

概括

在量子状态转换过程中的连贯性损失可以使用辅助连贯状态来部分恢复. 本研究详细介绍了量子位和多维系统的方法,使部分连贯性恢复和最大连贯性状态成为可能.

科学领域:

量子信息科学量子信息科学
量子光学是一种量子光学.
量子状态工程量子状态工程

背景情况:

量子连贯性是量子计算和信息处理的基本资源.
量子状态之间的转换,特别是从纯到混合状态的转换,往往导致连贯性丧失.
在现实的量子系统中,不连贯的运算是常见的,这给保持连贯性带来了挑战.

研究的目的:

研究在不连贯运算下的量子态转换中丧失的连贯性恢复的方法.
使用辅助连贯状态建立部分连贯恢复条件.
在这些方案中表征最大程度上连贯的状态的生成.

主要方法:

对量子位系统的连贯性辅助转换协议的分析.
导出部分连贯性恢复的必要和充分条件.
在具有辅助状态的任意有限维系统中研究连贯性恢复.

主要成果:

证明了纯到混合状态转换过程中的连贯性损失可以通过引入辅助连贯状态来部分恢复.
确定了量子比特状态的连贯性恢复的条件和最大程度.
提供了在量子比特系统中获得最大连贯状态的完整表征.
展示了对有限维系统的连贯性辅助转换和部分连贯性恢复的一般可能性.

结论:

一致性辅助的转换提供了一个可行的策略,以减轻量子状态工程中的连贯性损失.
辅助连贯状态在部分恢复失去的连贯性方面发挥着至关重要的作用.
这些发现适用于量子比特和更高维度量子系统,进步量子信息处理.

关键词:

一致性连贯性一致性一致性损失失去了连贯性.一致性恢复是一致性恢复.一致性转换变化的变化.

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