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在简述相位算符研究的基础上,为了克服Pegg-Barnet相位态平均光子数发散困难,提出有限能量系统的相位算符与相位本征态,研究了它的正交完备性、任意态函数的相位起伏计算及其在实际系统中的应用.In view of the divergent expectation value of photon number in Pegg-Barnett phase state,in this paper the phase operator,phase states for finite energy system are defined.Its orthogonality,completeness and application in the phase fluctuation calculation are studied.
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