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物理学报. 2000, 49(8): 1464-1470.
doi: 10.7498/aps.49.1464.
Kerr 介质中三能级原子与双模场非共振相互作用的量子统计性质
- 收稿日期: 1999-10-10
- 修回日期: 2000-01-21
- 刊出日期: 2000-04-05
摘要: 研究了Kerr介质中双模场与V型三能级原子的非共振相互作用. 对Cauchy-Schwartz不等式的研究表明，在两模场失谐量相等(δ1=δ2)条件下，当初始场强ξ一定而两模场的光子数差q减小时，场的非经典相关程度加强；q一定而ξ增大时，场的非经典相关程度减弱. 当Δδ=|δ2-δ1|≠0且q和ξ的取值一定时，随介质常量x的增大，光场两模间的非经典相关程度减弱，且Δδ的大小对这种非经典相关程度的减弱有重要影响. 对场的
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关键词:
- Kerr介质 /
- 非共振相互作用 /
- Cauchy-Schwartz不等式 /
- 场的二阶关联函数
English Abstract
QUANTUM STATISTIC PROPERTIES OF NON-RESONANCE INTERACTION BETWEEN A THREE-LEVEL ATOM AND TWO MODE CAVITIES WITH KERR MEDIUM
- Received Date:
10 October 1999
- Accepted Date:
21 January 2000
- Published Online:
05 April 2000
Abstract: We have studied the non-resonance interaction between a V-type three-level atom and two-mode cavity with Kerr medium. The results show that if the detunings of the two-mode cavities are equal (δ1＝δ2), when initial strength ξ of the two cavities remains unchanged and photon difference q of the two mode cavities is decreased, the non-classical coherence degree between the two mode cavities is increased; when q remains unchanged and ξ is increased, the non-classical coherence degree between the two mode cavities is decreased. When Δδ=|δ2-δ1|=0 and q and ξ remain unchanged, the non-classical coherence degree is decreased with the increase of Kerr effect, and the value of Δδ has an importance influence on the non-classical coherence degree. The results also show that when δ1=δ2, the second-order coherence degree of the cavity 1 shows g211222222>1. On the other hand, the amplitude evolution of the second-order coherence degree of two-mode cavity is decreased due to the influence of Kerr effect.
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