中国物理B ›› 2013, Vol. 22 ›› Issue (2): 20310-020310.doi: 10.1088/1674-1056/22/2/020310

• GENERAL • 上一篇    下一篇

Interaction of pair coherent state with a three-level Λ-type atom and generation of a modified Bessel-Gaussian state with a vortex structure

唐慧琴a, 李绍新b, 唐英a, 郑小娟a, 朱开成a   

  1. a School of Physical Science and Technology, Central South University, Changsha 410083, China;
    b Physical Staff Room, Guangdong Medical College, Dongguan 523808, China
  • 收稿日期:2012-04-08 修回日期:2012-06-27 出版日期:2013-01-01 发布日期:2013-01-01

Interaction of pair coherent state with a three-level Λ-type atom and generation of a modified Bessel-Gaussian state with a vortex structure

Tang Hui-Qin (唐慧琴)a, Li Shao-Xin (李绍新)b, Tang Ying (唐英)a, Zheng Xiao-Juan (郑小娟)a, Zhu Kai-Cheng (朱开成)a   

  1. a School of Physical Science and Technology, Central South University, Changsha 410083, China;
    b Physical Staff Room, Guangdong Medical College, Dongguan 523808, China
  • Received:2012-04-08 Revised:2012-06-27 Online:2013-01-01 Published:2013-01-01
  • Contact: Zhu Kai-Cheng E-mail:KCZhu058@csu.edu.cn

摘要: The evolution of a system state is derived based on the nonresonant interaction of a three-level "Λ" type atom with two cavity modes at a pair coherent state and two classic fields, and a cavity field state is analysed in detail under conditional detecting. It is found that the quantized modified Bessel-Gaussian states as well as the superposition states consisting of the quantized vortex states with different weighted coefficients may be prepared through carefully preparing an initial atomic state and appropriately adjusting the interaction time. The scheme provides an additional choice to realize the two-mode quantized vortex state within the context of cavity quantum electrodynamics (QED).

关键词: quantized vortex state, three-level Λ -type atom, cavity quantum electrodynamics (QED)

Abstract: The evolution of a system state is derived based on the nonresonant interaction of a three-level "Λ" type atom with two cavity modes at a pair coherent state and two classic fields, and a cavity field state is analysed in detail under conditional detecting. It is found that the quantized modified Bessel-Gaussian states as well as the superposition states consisting of the quantized vortex states with different weighted coefficients may be prepared through carefully preparing an initial atomic state and appropriately adjusting the interaction time. The scheme provides an additional choice to realize the two-mode quantized vortex state within the context of cavity quantum electrodynamics (QED).

Key words: quantized vortex state, three-level Λ -type atom, cavity quantum electrodynamics (QED)

中图分类号:  (Entanglement measures, witnesses, and other characterizations)

  • 03.67.Mn
42.50.Dv (Quantum state engineering and measurements)