Density matrix approach of the excitation on coherent states of the pseudoharmonic oscillatorD. Popov, N. Pop, I. Luminosu and V. Chiriţoiu
Department of Physical Foundations of Engineering, “Politehnica" University of Timisoara B-dul V. Parvan, No. 2, Timisoara, 300223, Romania, EU
received 3 June 2009; accepted in final form 5 August 2009; published August 2009
published online 7 September 2009
We have examined the excitation on coherent states of the pseudoharmonic oscillator which are obtained by repeated action of the raising operator on the usual coherent states. By using the density matrix approach, we have examined some interesting properties (including the nonclassicality) of these states, both in pure and also in mixed (thermal) cases.
42.50.-p - Quantum optics.
05.30.-d - Quantum statistical mechanics.
42.50.Ar - Photon statistics and coherence theory.
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