Browsing by Author "Fonseca Romero, K. M."

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    Entanglement properties of quantum polaritons
    (2016) Suarez Forero, D. G.; Cipagauta, G.; Vinck-Posada, Hebert; Fonseca Romero, K. M.
    Exciton polaritons are coupled states of matter and light, originated by the strong interaction between an optical and semiconductor excitons. This interaction be obtained also single-particle level, in which case it has been shown that a quantum treatment is mandatory. In this work we study the light-matter entanglement of polaritons from a fully quantum formalism including pumping and dissipation. We find that the entanglement is completely destroyed if the exciton and photon are tuned at the resonance condition, even under very low pumping rates: Instead, the best condition for maximizing entanglement and purity of the steady state is when the exciton and photon are out of resonance and when incoherent pumping exactly compensates the dissipation rate. In the presence of multiple quantum dots coupled to the light mode, matter-light entanglement survives only at larger detuning for a higher number of quantum dots considered.
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    Óptica de nanopartículas y nanocompuestos
    (2001) Alfonso, J. E.; Rodríguez, O.; García, Cobacy; Sánchez, P.; Otálora, J. C.; Carelli, J. L.; Ávila, H. A.; Merchán, E.; Osorio, J.; Cristancho Mejía, Luis Fernando; Carrillo, C.; Daza, C.; Múnera, H.; Herrera, W.; Niño, Virgilio; Santos Palermo, Carlos Alberto; Valencia Hernández, Felipe; Machado Charry, Fabio Eduardo; Ríos Montañez, Gloria Inés; Albarracín Balaguera, Raúl Humberto; Gutiérrez Rodríguez, Adriana; Fonseca Romero, K. M.; Aguilar Pinto, A. C.; Peixoto de Faria, J.G.; Nemes, M. C.; Thomaz, M. T.; Zanatta, A. R.; Fajardo, Luis F.; Mulato, M.; Lima, Jr. M. M.; Marques, M. C.; Chambouleyron, I.; Campos, A. M.; Peña, C.; Torres S., J.; Rey González, R. R.; Cortez Torres, Jaime Hernán; Valencia, F.; Ortiz, H.; Schulz, P. A.; López Carreño, Luis Demetrio; Benítez, G.; Viscido, L.; Heras, J. M.; Ojeda Silva, J.; Parra Vargas, C.; Barón González, A. J.; Salcedo Reyes, Juan Carlos