南昌工程学院学报
南昌工程學院學報
남창공정학원학보
JOURNAL OF NANCHANG INSTITUTE OF TECHNOLOGY
2012年
3期
7-10
,共4页
量子不谐和%几何测量%X-态
量子不諧和%幾何測量%X-態
양자불해화%궤하측량%X-태
quantum discord%geometric measure%X-state
在文献[1]的基础上,将文献[1]中求解出消相干环境下Bell对角态的GMQD(geometricmeasure of quantumdiscord)方法推广到求解具有普遍形式的X-态的GMQD,并在求出一般形式X-态在3种不同消干环境的GMQD后,将结果应用于Bell对角态进行验证,能得到与文献[I]一致的形式.
在文獻[1]的基礎上,將文獻[1]中求解齣消相榦環境下Bell對角態的GMQD(geometricmeasure of quantumdiscord)方法推廣到求解具有普遍形式的X-態的GMQD,併在求齣一般形式X-態在3種不同消榦環境的GMQD後,將結果應用于Bell對角態進行驗證,能得到與文獻[I]一緻的形式.
재문헌[1]적기출상,장문헌[1]중구해출소상간배경하Bell대각태적GMQD(geometricmeasure of quantumdiscord)방법추엄도구해구유보편형식적X-태적GMQD,병재구출일반형식X-태재3충불동소간배경적GMQD후,장결과응용우Bell대각태진행험증,능득도여문헌[I]일치적형식.
Quantum discord (QD) is often used to describe the quantum correlations of the quantum system. Since the mixed X-state exists in a very wide range of physical systems,we find the GMQD with gen- eral form X-state and consider solving in decoherence environment. Finally, we apply the results in this paper to Bell-diagonal state (a special form of X-stato) ,and get a consistent form with literatme[ 8 ].