大失谐相互作用时两能级原子消相干性的消除

Two-level Atom's Decoherence Vanishing from Sight in the Big Detuning Interaction of Atom with Thermal Radiation Field

两能级原子置于外部环境 (热库 )中 ,在原子与热辐射场大失谐相互作用时外加驱动场 ,得到相互作用过程中原子约化密度算符非对角元。在两能级原子的消相干被消除的情况下 。

The problem of the decoherence of two level atom being put in a thermal reservoir through an external controllable driving field is studied.The big detuning interaction of atom with thermal radiation field is considered.The non opposite angle element of two level atoms reducible density rectangular array is obtained.We discuss the properties of an external driving field when atoms decoherence vanish from sight.