Deformed Weyl-Heisenberg algebra and quantum decoherence effect

• Published in: Laser physics Vol. 24; no. 5; pp. 55203 - 55209
• Main Authors: Dehdashti, Sh, Bagheri Harouni, M, Mahdifar, A, Roknizadeh, R
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.05.2014
• Subjects: decoherence process; displacement-type deformed coherent state; fidelity; Gazeau-Klauder deformed coherent state
• ISSN: 1054-660X; 1555-6611
• DOI: 10.1088/1054-660X/24/5/055203

We study the dynamics of a catlike superposition of f-deformed coherent states under dissipative decoherence. For this purpose, we investigate two important categories of f-deformed coherent states: Gazeau-Klauder and displacement-type coherent states. In addition, we consider two deformation functions; one of them describes a harmonic oscillator in an infinite well and another corresponds to a harmonic oscillator in a quantum well with finite depth. The decoherence effects appeared through a dissipative interaction of the environment with the catlike states. In this study, we first show that the Gazeau-Klauder coherent state is more resistant under the decoherence process, in contrast to the displacement-type one, and second, that the potential range of the infinite well and the depth of potential possess a remarkable role in the decoherence process.