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Parity‐Induced Localization in Periodically Driven Ring Lattices
Annalen Der Physik ( IF 2.2 ) Pub Date : 2021-01-18 , DOI: 10.1002/andp.202000429
Liping Li 1 , Bo Wang 1 , Qing He 1 , Xuehua Zhang 1 , Xianghong Ge 1 , Shuanglin Mei 1
Affiliation  

Tunneling dynamics are investigated theoretically in ring shaped lattice with a site shifted periodically with respect to the others. A surprising finding on parity‐induced localization suggests that localization in the driven ring lattice can be generally divided into two types: odd‐parity‐induced localization and even‐parity‐induced localization, depending on the parity of number of quasi‐energy levels. Moreover, odd‐parity‐induced localization is proved to have its own distinct feature and it is not the crucial requirement to be an exact zero quasi‐energy state of classic dark state form for broad suppression of tunneling. These results deepen one's understanding about localization in a driven system and have great potential in the manipulation of quantum control.

中文翻译:

周期性驱动的环形格中的奇偶性诱导的定位

理论上在环形点阵中对隧道动力学进行了研究,环形点阵相对于其他点周期性地移动。关于奇偶校验引起的局域性的一个令人惊讶的发现表明,根据准能级数的奇偶性,驱动环晶格中的局域性通常可以分为两种类型:奇数奇偶性引起的局域性和偶数奇偶性引起的局域性。此外,奇偶校验引起的局域被证明具有其独特的特征,对于广泛地抑制隧穿而言,对于经典暗态形式的精确零准能量态不是关键要求。这些结果加深了人们对被驱动系统中定位的理解,并在操纵量子控制方面具有巨大潜力。
更新日期:2021-02-10
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