宁夏大学学报（自然科学版）2018，Vol.39Issue(1)：48-53,6.
二维周期型势阱中激子极化激元玻色爱因斯坦凝聚态局域化研究
The Study of the Exciton-polariton Bose-Einstein Condensates Iocalization in Two-dimensional Periodic Potentials
摘要
Abstract
The work focus on the study of the exciton-polariton stystem excited by pump in two-dimensional periodic potentials.Based on the untralcold atom,applying time-dependent variational approximation method works out the width of stable Gaussian condensation localization with Gaussian trial function and Euler-Lagrange eqution.The imaginary-time and real-time propagation methods are used to implement numerical simulation.Considering the influence of the pump,dissipation and saturation gain in the exciton-polariton system,the work is extended to the exciton-polariton system.The effects of different two-dimensional trapping potential periods on localization condensation behaviors are studied,and the localization condensation of cold atoms is compared with the same conditions.the role of periodic potential in the evolution of the exciton-polariton condensation is studied,and it is found that the localization of condensation is still able to appear in the absence of a periodic potential,and the density distribution of the condensation state can be corrected when the potential exists.关键词
激子极化激元/凝聚态/合时变分/数值Key words
exciton-polariton/condensation/time-dependent variation/numerical simulation分类
数理科学引用本文复制引用
张建伟,王盛军,任元,汤国志,陈海军..二维周期型势阱中激子极化激元玻色爱因斯坦凝聚态局域化研究[J].宁夏大学学报（自然科学版）,2018,39(1):48-53,6.基金项目
国家自然科学基金面上项目(11772001) （11772001）
国家高技术研究发展计划基金资助项目(2015AA8018038C) （2015AA8018038C）
