【摘要】 本文将Tavis-Cummings模型推广到双光子过程的情形,具体就两个原子与单模场相互作用时场的性质进行了研究。我们发现,只要适当制备原子对的初态,场的演化过程中就会出现压缩,并且在一定的初态下,场中还会出现高阶压缩,而此时通常意义上的压缩并不存在。更多还原

【Abstract】 We have extended Tavis--Cummings model to two-photon. process apd especially dis-cussed the squeezing properties of a single--model radiation field interacting with two atoms.If we properly prepare the initial state of the atoms, the field will exhibit squeezingin later time, and for some special initial states, the field will show higher--order sque-ezing defined by Hong and Mandel, but the squeezing studied.,usually will not exist.更多还原