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Title: Decoherence of spin-deformed bosonic model

The decoherence rate and some parameters affecting it are investigated for the generalized spin-boson model. We consider the spin-bosonic model when the bosonic environment is modeled by the deformed harmonic oscillators. We show that the state of the environment approaches a non-linear coherent state. Then, we obtain the decoherence rate of a two-level system which is in contact with a deformed bosonic environment which is either in thermal equilibrium or in the ground state. By using some recent realization of f-deformed oscillators, we show that some physical parameters strongly affect the decoherence rate of a two-level system. -- Highlights: •Decoherence of the generalized spin-boson model is considered. •In this model the environment consists of f-oscillators. •Via the interaction, the state of the environment approaches non-linear coherent states. •Effective parameters on decoherence are considered.
Authors:
 [1] ;  [2] ;  [1] ;  [3] ;  [1] ;  [3]
  1. Department of Physics, Faculty of Science, University of Isfahan, Hezar Jerib St., Isfahan 81746-73441 (Iran, Islamic Republic of)
  2. Science Department, Shahrekord University, Shahrekord (Iran, Islamic Republic of)
  3. (Iran, Islamic Republic of)
Publication Date:
OSTI Identifier:
22220756
Resource Type:
Journal Article
Resource Relation:
Journal Name: Annals of Physics (New York); Journal Volume: 334; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANNIHILATION OPERATORS; BOSONS; EIGENSTATES; GROUND STATES; HARMONIC OSCILLATORS; INTERACTIONS; NONLINEAR PROBLEMS; OSCILLATORS; SPIN; THERMAL EQUILIBRIUM