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arXiv 1208.0749quant-ph
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非线性时变系统的长期主方程

Secular master equation for adiabatically time dependent systems

I. Kamleitner

摘要:

仅依赖于第一性原理,我们推导出一个Lindblad形式的主方程,一般适用于非线性时变系统。我们的分析表明,备受争议的长期近似可以是有效的慢时间依赖的哈密顿量时,在适当的基础上进行。我们将我们的方法应用于众所周知的朗道-齐纳问题,我们发现绝热性通过耦合到低温环境得到改善。

英文摘要:

Relying only on first principles, we derive a master equation of Lindblad form generally applicable for adiabatically time dependent systems. Our analysis shows that the much debated secular approximation can be valid for slowly time dependent Hamiltonians when performed in an appropriate basis. We apply our approach to the well known Landau-Zener problem where we find that adiabaticity is improved by coupling to a low temperature environment.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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