Generation of a nonlinear stark shift through the adiabatic elimination method

被引：24

作者：

Ahmed, MMA ^{[1
]}

Khalil, EM ^{[1
]}

Obada, ASF ^{[1
]}

机构：

[1] Al Azhar Univ, Dept Math, Fac Sci, Cairo 11884, Egypt

来源：

OPTICS COMMUNICATIONS | 2005年 / 254卷 / 1-3期

关键词：

trapped ions; stark shift; field entropy; phase distributiom; Q-function;

D O I：

10.1016/j.optcom.2005.05.016

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Taking a three-level trapped atom, a Hamiltoninan with multiphonon process is derived. Through the elimination of the intermediate level by using the adiabatic elimination method, an effective Hamiltonian for a two-level atom with a nonlinear Stark shift is obtained. Some statistical aspects for this effective Hamiltonian are presented, The temporal evolution of the atomic inversion, entropy, phase distribution and Q-function is investigated. These aspects are sensitive to the changes due to the Stark shifts. The results show that the effect of Stark shift changes the quasiperiod of the field entropy and hence the entanglement between the particle and the field, (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：76 / 87

页数：12

共 21 条

[1] MULTIMODE AND MULTIPHOTON PROCESSES IN A NONLINEAR JAYNES-CUMMINGS MODEL [J].