摘要
Ｓｒｉｎｉｖａｓａｎ和Ｌｅｅ从一个真实的量子辐射场的物理态和与之对应的非物理态的分布函数出发，引入了量子辐射场的虚化态［Ｒ．ＳｒｉｎｉｖａｓａｎａｎｄＣ．Ｔ．Ｌｅｅ，Ｐｈｙｓ．Ｌｅｔ．Ａ２１８（１９９６）１５１］，接着，Ｄｅｌｉｍａ等人又从真实的物理态出发引入了虚化态的概念，并表明奇偶相干态是一种类虚化态［Ａ．Ｆ．ｄｅｌｉｍａｅｔａｌ，Ｐｈｙｓ．Ｌｅｔ．Ａ２２９（１９９７）４１１］。本文证明量子辐射场的四光子相干态是虚化态。
Srinivasan and lee introduced the shadowed states of quantized radiation field in terms of a real state with distribution p r(n) and a virtual (shadow) state with distribution (-1) np r(n) [R.Srinivasan and C.T.Lee, Phys. Lett., 1996, A218:151]. Based on the concept of a shadowed state. recently , A.F.de Lima et al have proposed shadowed like states [ A.F. de Lima, et al Phys. Lett., 1997, A229:410] . In this paper, we show that four photon coherent states are sgadowed like states.
出处
《量子光学学报》
CSCD
1998年第1期19-22,共4页
Journal of Quantum Optics
基金
国家自然科学基金
