Strong correlation effects in 2D Bose-Einstein condensed dipolar excitons

被引：32

作者：

Lozovik, Yurii E. ^{[1
]}

Kurbakov, I. L.

Astrakharchik, G. E.

Boronat, J.

Willander, Magnus

机构：

[1] Russian Acad Sci, Inst Spect, Troitsk 142190, Russia

[2] Univ Politecn Cataluna, Dept Fis Engn Nucl, E-08034 Barcelona, Spain

[3] Linkoping Univ, Inst Sci & Technol, SE-58183 Linkoping, Sweden

来源：

SOLID STATE COMMUNICATIONS | 2007年 / 144卷 / 09期

基金：

俄罗斯基础研究基金会;

关键词：

quantum wells; dipolar excitons; Bose-Einstein condensation; strong correlations;

D O I：

10.1016/j.ssc.2007.07.041

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

By doing quantum Monte Carlo ab initio simulations we show that dipolar excitons, which are now under experimental study, actually are strongly correlated systems. Strong correlations manifest in significant deviations of excitation spectra from the Bogoliubov one, large Bose condensate depletion, short-range order in the pair correlation function, and peak(s) in the structure factor. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：399 / 404

页数：6

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