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- Nicolás Quesada, Herbert Vinck-Posada, Boris A Rodríguez
- Journal of physics. Condensed matter : an…
- 2011

We investigate the effects of considering two different incoherent excitation mechanisms on microcavity quantum dot systems modeled using the Jaynes-Cummings Hamiltonian. When the system is incoherently pumped with polaritons it is able to sustain a large number of photons inside the cavity with Poisson-like statistics in the stationary limit, and it also… (More)

- A G Silva, C A Parra-Murillo, +8 authors M Hopkinson
- Optics express
- 2008

The relative intensity of photonic modes in microcavity pillars with embedded self-assembled quantum dots is shown to be a sensitive function of quantum dot dipole orientation and position. This is deduced from a comparison of experiment and calculated intensities of light emission for many nominally identical pillars. We are able to obtain the overall… (More)

Second order perturbation theory and a Lipkin-Nogami scheme combined with an exact Monte Carlo projection after variation are applied to compute the ground-state energy of 6 ≤ N ≤ 210 electron-hole pairs confined in a parabolic two-dimensional quantum dot. The energy shows nice scaling properties as N or the confinement strength is varied. A crossover from… (More)

- Ian Mondragon-Shem, Boris A. Rodríguez, Francisco E. López
- Computer Physics Communications
- 2010

- Juan P. Restrepo, Herbert Vinck-Posada, Boris A. Rodríguez
- Microelectronics Journal
- 2008

The relation between the master equation and the Wigner function to characterize the dissipative system dynamics (evolution, mixedness and decoherence) between a three-level quantum-dot system coupled with two light modes in a semiconductor microcavity is analyzed. In particular, it is shown that the dephasing processes increase the decoherence driving the… (More)

- Herbert Vinck-Posada, Boris A Rodriguez, P S S Guimaraes, Alejandro Cabo, Augusto Gonzalez
- Physical review letters
- 2007

We show that the combined effect of photon emission and Coulomb interactions may drive an exciton-polariton system towards a dynamical coherent state, even without phonon thermalization or any other relaxation mechanism. Exact diagonalization results for a finite system (a multilevel quantum dot interacting with the lowest-energy photon mode of a… (More)

- Carlos A Vera, Nicolás Quesada M, Herbert Vinck-Posada, Boris A Rodríguez
- Journal of physics. Condensed matter : an…
- 2009

The relation between the dynamical regimes (weak and strong coupling) and entanglement for a dissipative quantum dot microcavity system is studied. In the framework of a phenomenological temperature model an analysis in both temporal (population dynamics) and frequency domain (photoluminescence) is carried out in order to identify the associated dynamical… (More)

- Paulo C Cárdenas, Nicolás Quesada, Herbert Vinck-Posada, Boris A Rodríguez
- Journal of physics. Condensed matter : an…
- 2011

We present a study of the strong coupling between radiation and matter, considering a system of two quantum dots, which are in mutual interaction and interact with a single mode of light confined in a semiconductor nanocavity. We take into account dissipative mechanisms such as the escape of the cavity photons, decay of the quantum dot excitons by… (More)

- J S Rojas-Arias, B A Rodríguez, H Vinck-Posada
- Journal of physics. Condensed matter : an…
- 2016

Dipolaritons are quasiparticles that arise in coupled quantum wells embedded in a microcavity, they are a superposition of a photon, a direct exciton and an indirect exciton. We propose the existence of dipolaritons in a system of two coupled quantum dots inside a microcavity in direct analogy with the quantum well case and find that, despite some… (More)

In this work, we present a theoretical study of a quantum dot-microcavity system which includes a constant magnetic field in the growth direction of the micropillar. First, we study the zero temperature case by means of a selfconsistent procedure with a trial function composed by a coherent photon field and a BCS function for the electron-hole pairs. The… (More)

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