推导了幅度损耗腔中V型三能级原子与光场拉曼相互作用系统的密度算符,并由此研究了系统线性熵、光场线性熵和原子线性熵的特性.结果表明:损耗腔中系统和原子除初始时刻呈现纯态外,其它任何时刻均处于混合态,其混合程度经一段时间后保持不变,混合程度的高低与光场平均光子数有关且随其增加而升高,在td时刻,原子与光场完全退耦合,光场退回到初始纯态,但原子仍呈现混合态,当损耗系数增大时,原子和系统的线性熵趋于同一稳定值的速度加快,光场的平均光子数增大后,损耗系数对线性熵影响更为明显.
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