Photo-induced metallic liquid in a one-dimensional Mott insulator in AC fields

被引：0
|
作者：
Oka, T. [1 ]
Aoki, H. [1 ]
机构：
[1] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan
来源：
25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 4: QUANTUM PHASE TRANSITIONS AND MAGNETISM | 2009年 / 150卷
关键词：
D O I：
10.1088/1742-6596/150/4/042152
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
We theoretically study the properties of the photo-carriers created in a one-dimensional Mott insulator subject to strong AC electric fields. The time-dependent density matrix renormalization group method is used to calculate the nonlinear optical conductivity-for which a metallic, gapless mode is found to emerge-The mode has linear dispersion with a charge velocity that differs from the free electron velocity-which indicates that the photo-doped carriers behave collectively as in the Tomonaga-Luttinger liquid.
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页数：4
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