Decoherence of spin-deformed bosonic model

作者：Dehdashti Sh; Mahdifar A; Harouni M Bagheri^*; Roknizadeh R

来源：Annals of Physics, 2013, 334: 321-333.

DOI：10.1016/j.aop.2013.04.003

• Decoherence
• Spin-boson model
• Non-linear coherent states

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.

• 出版日期2013-7