Rabi flopping in a two-level system with a time-dependent energy renormalization: Intersubband transitions in quantum wells

被引:59
作者
Batista, AA [1 ]
Citrin, DS [1 ]
机构
[1] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA
基金
美国国家科学基金会;
关键词
D O I
10.1103/PhysRevLett.92.127404
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We obtain pulse-driven Rabi oscillations guided by a generalization of the rotating-wave approximation to include, in the optical-Bloch equations, two-level systems with a time-varying transition energy. We achieve this by using chirped pulses with the central frequency given by the time-varying transition energy. Using this approach, we predict Rabi oscillations in intersubband transitions in a two-subband n-type modulation-doped quantum well by taking into account the time-dependent intersubband energy-gap renormalization due to depolarization-shift effects. We obtain Rabi oscillations for jpi (j=0,1,2,...) pulses in the presence of dephasing.
引用
收藏
页码:127404 / 1
页数:4
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