Quantum interference and cavity QED effects in a V-system

Akram, Uzma (2003). Quantum interference and cavity QED effects in a V-system PhD Thesis, School of Physical Sciences, University of Queensland.

       
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Author Akram, Uzma
Thesis Title Quantum interference and cavity QED effects in a V-system
School, Centre or Institute School of Physical Sciences
Institution University of Queensland
Publication date 2003
Thesis type PhD Thesis
Supervisor Dr. Zbigniew Ficek
Total pages 147
Collection year 2003
Language eng
Subjects L
240201 Theoretical Physics
780102 Physical sciences
Formatted abstract This thesis examines the effect of quantum interference occuring in a three-level atom in the V-configuration, on a variety of optical effects such as controlled spontaneous emission, population trapping, lasing without population inversion, controlled field intensity and photon statistics. Calculations are carried out numerically via the master equation approach and analytically using dressed atom analysis. Various atom-laser coupling configurations are investigated and dressed states identified in each case. The system is shown to exhibit trapping states for a variety of atom-laser coupling configurations. Moreover, the thesis focuses on the effect of quantum interference on a cavity QED system. Three different cavity detunings with respect to the entangled atom-laser system are considered. It is shown in each case how the singly dressed entangled system interacts with the cavity field to form entangled doubly dressed structures. Again, the system is shown to exhibit population trapping states with dependence on the cavity damping rate in one of the detunings considered. In addition, photon statistics of the cavity field are calculated and shown to be sensitive to the degree of quantum interference. Interestingly, controlled field intensity and sub-Poissonian statistics are obtained for certain parameters of the two off-resonance cases considered
Keyword Superconducting quantum interference devices

 
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Created: Fri, 24 Aug 2007, 18:16:10 EST