量子点中稠密电子-空穴相与BCS excitonic相的十字迹
介观与纳米尺度物理
2009-10-31 v3
摘要
应用第二阶扰动理论和Lipkin-Nogami方案结合变分后进行的精确蒙特卡洛投影，计算了个电子-空穴对 confined 在抛物线二维量子点中的基态能。能量随N或约束强度的变化表现出良好的缩放特性。发现了从高密度电子-空穴相到BCS excitonic相的十字迹， occurring at a density which is roughly four times the close-packing density of excitons。
引用
@article{arxiv.cond-mat/9808333,
title = {Crossover between the Dense Electron-Hole Phase and the BCS Excitonic Phase in Quantum Dots},
author = {Boris A. Rodriguez and Augusto Gonzalez and Luis Quiroga and Roberto Capote and Ferney Rodriguez},
journal= {arXiv preprint arXiv:cond-mat/9808333},
year = {2009}
}
备注
Improved variational and projection calculations. 17 pages, 3 ps figures. Accepted for publication in Int. J. Mod. Phys. B