The dynamics of coupled atom and field assisted by continuous external pumping
G. Burlaka, O. Starostenkob, and J.A. Hernandezc
a Centro de Investigación en Ingeniería y Ciencias Aplicadas, Universidad Autónoma del Estado de Morelos, Cuernavaca, Mor. Mexico.
Corresponding author: gburlak@uaem.mx
b Departamento de Física, Electrónica, Sistemas y Mecatrónica, Universidad de las Américas Puebla, Ex. Hacienda Santa Catrina Mártir, Cholula, Puebla, 72820, Mexico.
c Centro de Investigación en Ingeniería y Ciencias Aplicadas, Universidad Autónoma del Estado de Morelos, Cuernavaca, Mor. Mexico.
]]>Recibido el 30 de septiembre de 2005
Aceptado el 27 de abril de 2006
Abstract
The dynamics of a coupled system comprising a two–level atom and cavity field assisted by a continuous external classical field (driving Jaynes–Cummings model) is studied. When the initial field is prepared in a coherent state, the dynamics strongly depends on the algebraic sum of both fields. If this sum is zero (the compensative case) in the system, only the vacuum Rabi oscillations occur. The results with dissipation and external field detuning from the cavity field are also discussed.
Keywords: Two–level atom; driving Jaynes–Cummings model; vacuum Rabi oscillations.
Resumen
Estudiamos la dinámica de un sistema acoplado de un átomo de dos niveles y un campo electromagnético quántico de cavidad asistidos por un campo electromagnético clásico externo continuo (modelo Jaynes–Cummings guiado). Cuando el campo de la cavidad inicialmente es preparado en un estado coherente, la dinámica depende fuertemente de la suma algebraica de ambos campos. Si este suma es cero (caso compensativo) en el sistema solo ocurren las oscilaciones de Rabi de vacío. También discutimos los resultados con disipación y desintonizacion del campo externo con respecto al campo de la cavidad.
]]> Descriptores: Átomo de dos niveles; modelo Jaynes–Cummings guiado; oscilaciones de Rabi de vacío.
PACS: 32.80; 42.50; 42.50.
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Acknowledgements
The authors are grateful to Alexander (Sasha) Draganov (ITT Industries – Advanced Engineering & Science Division) who made several helpful comments. This work of G.B is partially supported by CONACyT grant 47220.
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