Interaction of Two-Level Atoms with a Squeezed Vacuum
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Date
1997-06
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Addis Ababa University
Abstract
The squeezing and the statistical properties as well as the spectrum of the
radiation resulting from the interaction of two-level atoms with a sqneezed vacuum
is analyzed. We have considered the case in which the two-level atoms,
all initially in the upper level, are placed in a squeezed vacuum. We have also
considered the case in which the atoms, initially with nearly equal number in
each level, are confined in a cavity coupled to a squeezed vacuum. The quadrature
fluctuations, the photon number distribution and the spectrum of the the
radiation are calculated using the Q-function formalism. The Q-function is
determined applying the method of evaluating the propagator developed by
Fesseha [19,20]. The radiation is found out to be in a squeezed state for certain
period of time in the first case and for all times in the second case. It is also
shown that one effect of the squeezed vacuum is to increase the height of the
spectrum of the radiation
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Interaction of Two-Level Atoms