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arXiv quant-ph/0701034quant-phcond-mat.stat-mech
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相干激子输运在相空间中的局域化

Localization of coherent exciton transport in phase space

Oliver Muelken, Veronika Bierbaum, Alexander Blumen

摘要:

我们数值研究了在静态无序存在下离散环上激子的动力学。基于连续时间量子漫步,我们计算的时间演化的Wigner函数(WF)的纯对角(网站)的混乱,以及对角和非对角(网站和转移)的混乱。在这两种情况下,大的障碍导致本地化和破坏的特征相空间模式的WF中发现的障碍。

英文摘要:

We study numerically the dynamics of excitons on discrete rings in the presence of static disorder. Based on continuous-time quantum walks we compute the time evolution of the Wigner function (WF) both for pure diagonal (site) disorder, as well as for diagonal and off-diagonal (site and transfer) disorder. In both cases, large disorder leads to localization and destroys the characteristic phase space patterns of the WF found in the absence of disorder.

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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