TY - JOUR T1 - Investigation of generation of non-classical states for the radiation field in the system of a trapped atom in a cavity within the first order of the Lamb-Dicke approximation TT - بررسی تولید حالت های غیرکلاسیک میدان تابشی در سامانه ی اتم به دام افتاده ی داخل کاواک در تقریب مرتبه ی اول لمب-دیک JF - opsi JO - opsi VL - 20 IS - 0 UR - http://opsi.ir/article-1-308-en.html Y1 - 2014 SP - 737 EP - 740 KW - Cavity quantum electrodynamics KW - the squeezing of quadrature component of the field KW - the system of a trapped atom KW - the collapse and the revival of Rabi oscillations N2 - In this paper, the generation of non-classical state for the cavity field is investigated by controlling the Lamb-Dicke parameter. It is shown that although there is no apparently non-linear characteristic in the Hamiltonian within the first order of the Lamb-Dicke approximation, when the effective Hamiltonian is obtained, the system shows an inherent non-linearity. By using the superoperator method, the analytical expression for the density operator is obtained and then the atomic population inversion is analysed. Moreover, by using the dynamical evolution and analysing the Q-distribution function of the field, the non-classical properties of the radiation field is investigated. We show that the quadrature squeezing field will occur for one of the quadrature field components. M3 ER -