23 citations · 194 across the 38 of their papers we have counts for
18 papers · 1 filter
Dynamics of a quantum polariton vortex: Low excitation scenario
J. P. Restrepo Cuartas, C. A. Flórez-Acosta, J. D. Rodríguez-Durán +3
Quantum vorticity in polariton systems has been traditionally investigated within the frame of many-body phenomena under the mean-field or coherent approaches. In the present work,…
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…
Photon-mediated interactions near a Dirac photonic crystal slab
Erik P. Navarro-Barón, Herbert Vinck-Posada, Alejandro González-Tudela
Dirac energy-dispersions are responsible of the extraordinary transport properties of graphene. This motivated the quest for engineering such energy dispersions also in photonics,…
Generation of matter threefold star state by dynamical transfer from photonic counterpart
J. P. Restrepo Cuartas, M. Cardona-Rincón, H. Vinck-Posada
In this paper, the dynamics of a system composed by an assembly of two-level atoms coupled to a single-mode cavity is theoretically studied considering the Tavis-Cummings Hamiltoni…
Effective quasiparticle approach for a Cavity-QDots System
F. Gómez, J. P. Restrepo Cuartas, B. A. Rodríguez Rey +1
In this work, we present a quasiparticle strategy to study the Hamiltonian description of the stationary states for two quantum dots--cavity system. We consider three different eff…
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…
Phonon-assisted tunnelling in a double quantum dot molecule immersed in a cavity
Vladimir Vargas-Calderón, Herbert Vinck-Posada
The effects caused by phonon-assisted tunnelling (PhAT) in a double quantum dot (QD) molecule immersed in a cavity were studied under the quantum Markovian master equation formalis…
Quantum correlations between two distant cavity QED systems coupled by a mechanical resonator
J. E. Ramírez-Muñoz, J. P. Restrepo Cuartas, H. Vinck-Posada
Achieving quantum correlations between two distant systems is a desirable feature for quantum networking. In this work, we study a system composed of two quantum emitter-cavity sub…
Indirect strong coupling regime between a quantum dot and a nanocavity mediated by a mechanical resonator
J. E. Ramírez-Muñoz, J. P. Restrepo Cuartas, H. Vinck-Posada
Achieving strong coupling between light and matter is usually a challenge in Cavity Quantum Electrodynamics (cQED), especially in solid state systems. For this reason is useful tak…
The Role of a Polariton Bath in the Emission Spectrum of an Open Nanocavity-Quantum Dot System
Nicolás Moure, Herbert Vinck-Posada, Boris A. Rodríguez
We investigate the effect of a polariton bath on the photoluminescence (PL) spectrum of the elementary excitations for a confined nanocavity-quantum dot (nC-QD) system. We modeled…
Can the exciton--polariton regime be defined by its quantum properties?
D. G. Suárez-Forero, G. Cipagauta, H. Vinck-Posada +2
Using a simple fully quantum model in an effective exciton scheme that takes into account the system--environment interaction, we study the different regimes arising in a microcavi…
Non-Classical Behaviour of Scalar Wave Fields in Any State of Spatial Coherence and Point Sources in the Phase-Space Representation
Román Castañeda, Gustavo Cañas-Cardona, Herbert Vinck-Posada
In the framework of the spatial coherence wavelets, different features of the first-order spatial coherence (Young's interference) are analysed by calculating the corresponding mar…
Density operator of a system pumped with polaritons: A Jaynes-Cummings like approach
Nicolás Quesada, Herbert Vinck-Posada, Boris A. Rodríguez
We investigate the effects of considering two different incoherent pumpings over a microcavity-quantum dot system modelled using the Jaynes-Cummings Hamiltonian. When the system is…
Characterization of dynamical regimes and entanglement sudden death in a microcavity quantum - dot system
Carlos A. Vera, Nicolas Quesada M., Herbert Vinck-Posada +1
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 phenomen…
Polariton Lasing in a Multilevel Quantum Dot Strongly Coupled To a Single Photon Mode
Carlos Andres Vera, Herbert Vinck-Posada, Augusto Gonzalez
We present an approximate analytic expression for the photoluminescence spectral function of a model polariton system, which describes a quantum dot, with a finite number of fermio…
Micropillar resonator in a magnetic field: Zero and Finite temperature cases
Herbert Vinck-Posada, Boris A. Rodriguez, Augusto Gonzalez
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 stud…
Photon emission as a source of coherent behaviour of polaritons
Herbert Vinck-Posada, Boris A. Rodriguez, P. S. S. Guimaraes +2
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 thermaliz…
Mean-field dynamics of a quantum dot - microcavity system
Herbert Vinck-Posada, Boris A. Rodriguez, Augusto Gonzalez
Mean-field evolution equations for the exciton and photon populations and polarizations (Bloch-Lamb equations) are written and numerically solved in order to describe the dynamics…