Long-range order in the Bose-Einstein condensation of polaritons

被引：43

作者：

Sarchi, D. ^{[1
]}

Savona, V. ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Inst Theoret Phys, CH-1015 Lausanne, Switzerland

来源：

PHYSICAL REVIEW B | 2007年 / 75卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.75.115326

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We adopt a kinetic theory of polariton nonequilibrium Bose-Einstein condensation to describe the formation of off-diagonal long-range order. The theory accounts properly for the dominant role of quantum fluctuations in the condensate. In realistic situations with optical excitation at high energy, it predicts a significant depletion of the condensate caused by long-wavelength fluctuations. As a consequence, the one-body density matrix in space displays a partially suppressed long-range order and a pronounced dependence on the finite size of the system.

引用

页数：8

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