Nonequilibrium Langevin approach to quantum optics in semiconductor microcavities

被引：28

作者：

Portolan, S. ^{[1
,3
]}

Di Stefano, O. ^{[2
]}

Savasta, S. ^{[2
]}

Rossi, F. ^{[3
]}

Girlanda, R. ^{[2
]}

机构：

[1] Ecole Polytech Fed Lausanne, Inst Theoret Phys, CH-1015 Lausanne, Switzerland

[2] Univ Messina, Dipartimento Fis Mat & Tecnol Fis Avanzate, I-98166 Messina, Italy

[3] Politecn Torino, Dipartimento Fis, I-10129 Turin, Italy

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 03期

关键词：

D O I：

10.1103/PhysRevB.77.035433

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Recently, the possibility of generating nonclassical polariton states by means of parametric scattering has been demonstrated. Excitonic polaritons propagate in a complex interacting environment and contain real electronic excitations subject to scattering events and noise affecting quantum coherence and entanglement. Here, we present a general theoretical framework for the realistic investigation of polariton quantum correlations in the presence of coherent and incoherent interaction processes. The proposed theoretical approach is based on the nonequilibrium quantum Langevin approach for open systems applied to interacting-electron complexes described within the dynamics controlled truncation scheme. It provides an easy recipe to calculate multitime correlation functions which are key quantities in quantum optics. As a first application, we analyze the buildup of polariton parametric emission in semiconductor microcavities including the influence of noise originating from phonon-induced scattering.

引用

页数：17

共 41 条

[1] Femtosecond spectroscopy in semiconductors: a key to coherences, correlations and quantum kinetics [J].