Detuning-Controlled Internal Oscillations in an Exciton-Polariton Condensate

被引：25
|
作者：
Voronova, N. S. [1 ]
Elistratov, A. A. [2 ]
Lozovik, Yu. E. [3 ,4 ,5 ]
机构：
[1] Natl Res Nucl Univ MEPhI, Moscow Engn Phys Inst, Moscow 115409, Russia
[2] Inst Nanotechnol Microelect RAS, Moscow 119334, Russia
[3] Inst Spect RAS, Moscow 142190, Russia
[4] State Univ, Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia
[5] HSE, Moscow Inst Elect & Math, Moscow 101000, Russia
来源：
PHYSICAL REVIEW LETTERS | 2015年 / 115卷 / 18期
基金：
俄罗斯基础研究基金会;
关键词：
BOSE-EINSTEIN CONDENSATION; QUANTIZED VORTICES;
D O I：
10.1103/PhysRevLett.115.186402
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We theoretically analyze exciton-photon oscillatory dynamics within a homogenous polariton gas in the presence of energy detuning between the cavity and quantum well modes. Whereas pure Rabi oscillations consist of the particle exchange between the photon and exciton states in the polariton system without any oscillations of the phases of the two subcondensates, we demonstrate that any nonzero detuning results in oscillations of the relative phase of the photon and exciton macroscopic wave functions. Different initial conditions reveal a variety of behaviors of the relative phase between the two condensates, and a crossover from Rabi-like to Josephson-like oscillations is predicted.
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页数：6
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