Density matrix of strongly coupled quantum dot – microcavity system

Detuning effect in quantum dynamics of a strongly coupled single quantum dot--cavity system

The quantum dynamics of a strongly coupled single quantum dot–cavity system with non-zero detuning in a phonon bath is investigated theoretically in terms of a perturbation treatment based on a unitary transformation and an operator displacement. The decoherence due to phonons as a function of the detuning between the cavity mode and exciton is obtained analytically. It is shown that the detuni...

Theory of quantum light emission from a strongly-coupled single quantum dot photonic-crystal cavity system.

We present a rigorous medium-dependent theory for describing the quantum field emitted and detected from a single quantum dot exciton, strongly coupled to a planar photonic crystal nanocavity, from which the exact spectrum is derived. By using simple mode decomposition techniques, this exact spectrum is subsequently reduced to two separate user-friendly forms, in terms of the leaky cavity mode ...

A Quantum Dot Microcavity Terahertz Laser

We discuss a THz laser device based on a semiconductor quantum dot (QD) gain medium, where the lasing occurs through discrete conduction states. An ensemble of QDs is selectively placed in a high quality cavity, called a microdisk, which is resonant with a terahertz intersublevel QD transition. We simulate the rate equations goveming iasing and discuss a variety of processes affecting lasing in...

Nonlinear temporal dynamics of a strongly coupled quantum-dot–cavity system

We theoretically analyze the temporal dynamics of strongly coupled quantum-dot–cavity system driven by a resonant laser pulse and observe the signature of Rabi oscillation in the time-resolved response of the system (i.e., in the numerically calculated cavity output). We derive simplified linear and nonlinear semiclassical models that approximate well the system’s behavior in the limits of high...

Supplementary Material: Ultrafast photon-photon interaction in a strongly coupled quantum dot-cavity system