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Photon-added coherent states for the Morse oscillator

Domenii publicaţii > Fizica + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Dusan POPOV, Ioan ZAHARIE, Dong SHI-HAI

Editorial: Czechoslovak Journal of PHYSICS, 56(2), p.157-176, 2006.

Rezumat:

In the paper we have constructed and investigated some properties of the Perelomov’s “generalized coherent states” and photon-added coherent states for the Morse one-dimensional Hamiltonian (MO-PACSs), using the SU(2) group generators. We have found the integration measure in the resolution of unity and we have calculated some expectation values in the MO-PACSs representation. Using these states, the diagonal P-representation of the density operator is constructed as a new result for Morse potential. In addition, we have calculated some thermal expectation values for the quantum canonical diatomic gas of the Morse oscillators.

Cuvinte cheie: coherent states, Morse oscillator, density matrix, thermal expectations