Scale Invariance and Universality in a Cold Gas of Indirect Excitons

被引：13

作者：

Andreev, S. V. ^{[1
]}

Varlamov, A. A. ^{[2
]}

Kavokin, A. V. ^{[3
,4
]}

机构：

[1] Univ Montpellier 2, CNRS, Lab Charles Coulomb, UMR 5221,UM2, F-34095 Montpellier, France

[2] CNR, SPIN, I-00133 Rome, Italy

[3] Univ Southampton, Phys & Astron Sch, Southampton SO17 1BJ, Hants, England

[4] St Petersburg State Univ, Spin Opt Lab, Ulianovskaya 198504, Russia

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 112卷 / 03期

关键词：

COUPLED QUANTUM-WELLS; BOSE-CONDENSED GAS; THERMODYNAMICS;

D O I：

10.1103/PhysRevLett.112.036401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We address, theoretically, the puzzling similarity observed in the thermodynamic behavior of independent clouds of cold dipolar excitons in coupled semiconductor quantum wells. We argue that the condensation of self-trapped exciton gas starts at the same critical temperature in all traps due to the specific scaling rule. As a consequence of the reduced dimensionality of the system, the scaling parameters appear to be insensitive to disorder.

引用

页数：5

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