Zeno-logic applications of semiconductor quantum dots

被引：11
|
作者：
Schneebeli, L. [1 ]
Feldtmann, T. [2 ,3 ]
Kira, M. [2 ,3 ]
Koch, S. W. [1 ,2 ,3 ]
Peyghambarian, N. [1 ]
机构：
[1] Univ Arizona, Ctr Opt Sci, Tucson, AZ 85721 USA
[2] Univ Marburg, Dept Phys, D-35032 Marburg, Germany
[3] Univ Marburg, Ctr Mat Sci, D-35032 Marburg, Germany
来源：
PHYSICAL REVIEW A | 2010年 / 81卷 / 05期
关键词：
NONLINEAR-OPTICAL-PROPERTIES;
D O I：
10.1103/PhysRevA.81.053852
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Microscopic calculations show that CdSe-based semiconductor quantum dots with confined exciton and biexciton states are suitable candidates for Zeno-logic applications. The frequencies of the control and signal fields are chosen to guarantee very high transmission of the individual beams. If both fields are present simultaneously, they are strongly absorbed due to efficient ground-state-to-biexciton transitions. The optical Bloch equations for a three-level quantum-dot model with self-consistent light-matter coupling are solved numerically. The influence of dephasing and/or inhomogeneous dot distributions is analyzed and the conditions for satisfactory device operation are identified.
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页数：6
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