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Photon-added coherent states for thr Morse oscillator

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

Autori: Dusan Popov, I. Zaharie, S. H. Dong

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: stari coerente, oscilatorul Morse, matricea densitatii, valori medii termice // coherent states, Morse oscillator, density matrix, thermal expectation