K . - A . Suominen

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Abstract. A microscopic derivation of the master equation for the Jaynes-Cummings model with cavity losses is given, taking into account the terms in the dissipator which vary with frequencies of the order of the vacuum Rabi frequency. Our approach allows to single out physical contexts wherein the usual phenomenological dissipator turns out to be fully(More)
We theoretically examine photoassociation of a nonideal Bose-Einstein condensate, focusing on evidence for a macroscopic superposition of atoms and molecules. This problem raises an interest because, rather than two states of a given object, an atom-molecule system is a seemingly impossible macroscopic superposition of different objects. Nevertheless,(More)
J. Piilo, E. Lundh, and K.-A. Suominen Department of Physics, University of Turku, FIN-20014 Turun yliopisto, Finland Institute of Solid State Physics, Bulgarian Academy of Sciences, Tsarigradsko chaussée 72, 1784 Sofia, Bulgaria School of Pure and Applied Physics, University of KwaZulu-Natal, Durban 4041, South Africa Helsinki Institute of Physics, PL 64,(More)
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