Cavity polariton condensate in a disordered environment

被引：12

作者：

Thunert, Martin ^{[1
]}

Janot, Alexander ^{[2
]}

Franke, Helena ^{[1
]}

Sturm, Chris ^{[1
]}

Michalsky, Tom ^{[1
]}

Dolores Martin, Maria ^{[3
,4
]}

Vina, Luis ^{[3
,4
,5
]}

Rosenow, Bernd ^{[2
]}

Grundmann, Marius ^{[1
]}

Schmidt-Grund, Ruediger ^{[1
]}

机构：

[1] Univ Leipzig, Inst Expt Phys 2, D-04103 Leipzig, Germany

[2] Univ Leipzig, Inst Theoret Phys, D-04103 Leipzig, Germany

[3] Univ Autonoma Madrid, Dept Fis Mat, E-28049 Madrid, Spain

[4] Univ Autonoma Madrid, Inst Ciencia Mat Nicolas Cabrera, E-28049 Madrid, Spain

[5] Univ Autonoma Madrid, Inst Fis Mat Condensada, E-28049 Madrid, Spain

来源：

PHYSICAL REVIEW B | 2016年 / 93卷 / 06期

关键词：

BOSE-EINSTEIN CONDENSATION; QUANTIZED VORTICES; EXCITON-POLARITONS; MICROCAVITY;

D O I：

10.1103/PhysRevB.93.064203

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the influence of disorder on an exciton-polariton condensate in a ZnO-based bulk planar microcavity and compare experimental results with a theoretical model for a nonequilibrium condensate. Experimentally, we detect intensity fluctuations within the far-field emission pattern even at high condensate densities, which indicates a significant impact of disorder. We show that these effects rely on the driven dissipative nature of the condensate and argue that they can be accounted for by spatial phase inhomogeneities induced by disorder, which occur even for increasing condensate densities realized in the regime of high excitation power. Thus, nonequilibrium effects strongly suppress the stabilization of the condensate against disorder, contrary to what is expected for equilibrium condensates in the high-density limit. Numerical simulations based on our theoretical model reproduce the experimental data.

引用

页数：12

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