Efectos del acople mediado por fonones sobre la interacción radiación materia en sistemas biexcitónicos acoplados a una microcavidad óptica
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Abstract
In this work, we study how the off-resonance phonon mediated coupling is the mechanism responsible for the inexplicable spectral shifting of the cavity mode toward to the exciton mode which has been observed experimentally in a photonic crystal cavity. In order to demonstrate that, we consider a theoretical model composed by two quantum dots embedded in a optical microcavity within the Lindblad master equation approach and a detailed analysis of the Liouvillian operator that governs the system dynamics is performed. We found that this interesting phenomenology corresponds to the formation of collective states in the system as a result of a dynamical phase transition induced by the phononic coupling. Additionally, we demonstrate that the interactions between both quantum dots (type Förster and Ising interactions) also promotes the formation of these collective states only when there is off-resonance phonon mediated coupling in the system.
Palabras clave propuestas
Acople mediado por fonones; Sistemas biexcitónicos; Electrodinámica cuántica de cavidades; Modelo de Tavis-Cummings; Sistema cavidad-punto cuántico; Transición de fase dinámica cuántica; Formula de regresión cuántica; Off-resonance phonon mediated coupling; Biexcitonic system; Quantum cavity electrodynamics; Tavis-Cummings model; Quantum dot-cavity system; Dynamical phase transition; Quantum regression formula
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