深圳大学学报（理工版）
深圳大學學報（理工版）
심수대학학보（리공판）
JOURNAL OF SHENZHEN UNIVERSITY (SCIENCE & ENGINEERING)
2011年
2期
95-104
,共10页
量子熵%熵函数计算方法%混合态辐射场%辐射场的量子起伏%耗散量子系统%量子熵演化%量子光学%量子信息学%生物光子学
量子熵%熵函數計算方法%混閤態輻射場%輻射場的量子起伏%耗散量子繫統%量子熵縯化%量子光學%量子信息學%生物光子學
양자적%적함수계산방법%혼합태복사장%복사장적양자기복%모산양자계통%양자적연화%양자광학%양자신식학%생물광자학
quantum entropy%method for calculation of entropy function%radiation field in mixed state%quantum fluctuation of radiation field%dissipative quantum system%evolution of quantum entropy%quantum optics%quantum informatics%biophotonics
阐述熵的深刻涵义,对混合态的量子系统,建立计算熵函数的一般方法,并用其计算典型辐射场的量子熵.结果显示,量子熵关联到辐射场的微观起伏,因而能描述其量子相干性.显示了一个典型的耗散量子系统的熵演化特征.指出量子熵的研究方法和结果,有望用于量子光学、量子信息学、生物光子学及相关交叉学科领域.
闡述熵的深刻涵義,對混閤態的量子繫統,建立計算熵函數的一般方法,併用其計算典型輻射場的量子熵.結果顯示,量子熵關聯到輻射場的微觀起伏,因而能描述其量子相榦性.顯示瞭一箇典型的耗散量子繫統的熵縯化特徵.指齣量子熵的研究方法和結果,有望用于量子光學、量子信息學、生物光子學及相關交扠學科領域.
천술적적심각함의,대혼합태적양자계통,건립계산적함수적일반방법,병용기계산전형복사장적양자적.결과현시,양자적관련도복사장적미관기복,인이능묘술기양자상간성.현시료일개전형적모산양자계통적적연화특정.지출양자적적연구방법화결과,유망용우양자광학、양자신식학、생물광자학급상관교차학과영역.
Based on the elucidation for definition of entropy,we present a general method for calculating entropy of a quantum system in mixed state and apply it to the radiation fields in the typically mixed states.The resuhs demon-strate that the quantum entropy is correlated to the microscopic fluctuation of the radiation fields,and it may there-fore describe the quantum coherence properties of the radiation fields.As an example,the evolution of entropy of a dissipative quantum system is investigated then.The results obtained in this paper are expected to provide a basis for applications of entropy method in some fields,such as quantum optics,quantum informatics,biophotonics,and related interdisciplinary science.
