Ortho-exciton polariton relaxation by phonon scattering in Cu2O

被引：7

作者：

Thoai, DBT

Haug, H

机构：

[1] Goethe Univ Frankfurt, Inst Theoret Phys, D-60054 Frankfurt, Germany

[2] Inst Phys, Ho Chi Minh City, Vietnam

来源：

SOLID STATE COMMUNICATIONS | 2000年 / 115卷 / 07期

关键词：

semiconductors; electron-phonon interactions; phase transitions; optical properties;

D O I：

10.1016/S0038-1098(00)00200-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The Boltzmann relaxation kinetics of ortho-excitons by scattering with thermal acoustic phonons is treated, taking into account the weak polariton effect due to the quadrupole-allowed optical transitions. The relatively small polariton splitting is shown to be sufficient to allow a decay of the upper-branch polaritons into the states on the lower branch. Because of this decay, the Bose-Einstein condensation in the k = 0 state of the upper-branch polaritons is, even without other finite lifetime effects, only a transient phenomenon. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：379 / 382

页数：4

共 16 条

[1]

[Anonymous], 1995, BOSEEINSTEIN CONDENS

[2] Condensation kinetics for bosonic excitons interacting with a thermal phonon bath [J].