在相干态表象中Jaynes－Cummings模型的简便处理

Concise Treatment of Jaynes-Cummings Model in Coherent-State Representation

在相干态表象中，我们介绍一种简便的方法来处理Ｊａｙｎｅｓ－Ｃｕｍｍｉｎｇｓ（ＪＣ）模型，可以将纯粹的量子问题转变为求解一些微分方程。本文的结果表明：这种方法不仅能够处理在旋转波近似下的二能级体系，也可以用来精确求解无旋转波近似时的ＪＣ模型。

In coherent-state representation, we introduce a concise approach to dealwith the Jaynes-Cummings(JC)model, in which the purely quantum mechanical problem is reduced to the solution of some differential equations. It is shown that this ap-proach can not only treat the two-level system within the rotating wave approximation(RWA), but also present an exact solution of the JC model without RWA.