0134251 - FZU-D 20030146 RIV DE eng J - Journal Article
El-Orany, F. A. A. - Peřina st., Jan - Peřinová, V. - Abdalla, S.
Evolution of cat states in a dissipative parametric amplifier:decoherence and entanglement.
European Physical Journal D. Roč. 22, - (2003), s. 141-156. ISSN 1434-6060. E-ISSN 1434-6079
R&D Projects: GA MŠMT LN00A015
Institutional research plan: CEZ:AV0Z1010921
Keywords : nonclassical field states * squeezed, antibunched, and sub-Poissonian states * operational definitions of the phase of the field phase measurements
Subject RIV: BH - Optics, Masers, Lasers
Impact factor: 1.612, year: 2003

The evolution of the Schrödinger-cat states in a dissipative parametric amplifier is examined. The main tool in the analysis is the normally ordered characteristica function. Squeezing, photon-number distribution and reduced factorial moments are discussed for the single- and compound-mode cases. Also the single-mode Wigner function is demonstrated.
Permanent Link: http://hdl.handle.net/11104/0032165