利用粒子间相互作用的量子系统的纯度及相干性补偿

doi:10.7523/j.issn.2095-6134.2008.5.018

中国科学院大学学报 ›› 2008, Vol. 25 ›› Issue (5): 687-697.DOI: 10.7523/j.issn.2095-6134.2008.5.018

利用粒子间相互作用的量子系统的纯度及相干性补偿

楼越升，丛爽

中国科学技术大学自动化系，合肥230027

收稿日期:1900-01-01 修回日期:1900-01-01 发布日期:2008-09-15

Purity and coherence compensation by using interactions between particles in quantum system

Lou Yuesheng, Cong Shuang

Department of Automation, University of Science and Technology of China, Hefei 230027, China

Received:1900-01-01 Revised:1900-01-01 Published:2008-09-15

摘要/Abstract

摘要： 研究了混态粒子的纯度补偿以及消相干过程的抵消问题，提出了利用辅助粒子及其与目标粒子的相互作用进行纯度及相干性补偿的方法。给出了2种不同情况——混态目标粒子的纯度补偿和消相干过程的抵消——辅助粒子的充要条件。并通过系统数值仿真实验验证了所设计方法的有效性。

关键词: 量子调控, 消相干控制, 纯度补偿, 相干性补偿, 粒子相互作用

Abstract: In this paper, problems of compensation for purity of particle in a mixed state and counteraction against decoherence process are investigated. A new method utilizing an assistant particle and its interactions with the target particle to compensate purity and coherence is proposed. Compensations for two different situations are considered: purity compensation for the target particle in a mixed state and counteraction against decoherence process. Conditions of the assistant particle for each situation are obtained. System numerical simulations are done to validate the validity of the method proposed.

Key words: quantum control, decoherence control, purity compensation, coherence compensation, particle interaction

楼越升，丛爽. 利用粒子间相互作用的量子系统的纯度及相干性补偿[J]. 中国科学院大学学报, 2008, 25(5): 687-697.

Lou Yuesheng, Cong Shuang. Purity and coherence compensation by using interactions between particles in quantum system[J]. , 2008, 25(5): 687-697.

利用粒子间相互作用的量子系统的纯度及相干性补偿

Purity and coherence compensation by using interactions between particles in quantum system

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