166 citations · 200 across the 6 of their papers we have counts for
8 papers · 1 filter
Dark Exciton Giant Rabi Oscillations with no External Magnetic Field
Vladimir Vargas-Calderón, Herbert Vinck-Posada, J. M. Villas-Boas
Multi-phonon physics is an emerging field that serves as a test bed for fundamental quantum physics and several applications in metrology, on-chip communication, among others. Quan…
Pure dephasing vs. Phonon mediated off-resonant coupling in a quantum-dot-cavity system
Santiago Echeverri-Arteaga, Herbert Vinck-Posada, José M. Villas-Bôas +1
Pure dephasing is widely used in the literature to explain experimental observations on quantum dots in cavities. In many cases, its use is not enough and extra terms need to be "f…
Coherent control of the dynamics of single quantum-dot exciton qubit in a cavity
Antonio de Freitas, L. Sanz, José M. Villas-Bôas
In this work we demonstrate theoretically how to use external laser field to control the population inversion of a single quantum dot exciton qubit in a nanocavity. We consider the…
Investigation of Non Resonant Dot - Cavity Coupling in Two Dimensional Photonic Crystal Nanocavities
M. Kaniber, A. Laucht, A. Neumann +4
We study the optical emission from single semiconductor quantum dots coupled to the optical modes of photonic crystal nanocavities. For dots that are both spectrally and spatially…
Spin polarized photocurrent from quantum dots
J. M. Villas-Boas, Sergio E. Ulloa, A. O. Govorov
In this paper we show that it is possible to switch the spin polarization of the photocurrent signal obtained from a single self-assembled quantum dot photodiode under the effect o…
Decoherence of Rabi oscillations in a single quantum dot
J. M. Villas-Boas, Sergio E. Ulloa, A. O. Govorov
We develop a realistic model of Rabi oscillations in a quantum-dot photodiode. Based in a multi-exciton density matrix formulation we show that for short pulses the two-level model…