文献类型：期刊文献

中文题名：Dynamical Change of Quantum Fisher Information of Cavity-Reservoir Systems

英文题名：Dynamical Change of Quantum Fisher Information of Cavity-Reservoir Systems

作者：Huang, Jiang[1];Xie, Qin[1]

机构：[1]Guangdong Ocean Univ, Phys & Photoelect Sci Dept, Zhanjiang 524088, Peoples R China

年份：2016

卷号：65

期号：4

起止页码：453

中文期刊名：Communications in Theoretical Physics

外文期刊名：COMMUNICATIONS IN THEORETICAL PHYSICS

收录：SCI-EXPANDED(收录号：WOS:000375569200009)、CSTPCD、、CSCD2015_2016、Scopus(收录号：2-s2.0-84964778789)、WOS、CSCD、PubMed

基金：Supported by the National Natural Science Foundation of China under Grant No. 11374096 and the Natural Science Foundation of Guangdong Province under Grant No. 2015A030310354 and the Projection of Enhancing School with Innovation of Guangdong Ocean University under Grant Nos. GDOU2014050251 and GDOU2014050252

语种：英文

中文关键词：dynamical change quantum Fisher information cavity-reservoir systems

外文关键词：dynamical change; quantum Fisher information; cavity-reservoir systems

中文摘要：We study the quantum Fisher information(QFI) dynamics of the phase parameter in the enlarged cavityreservoir systems at zero temperature under two situations of large N limit and non-Markovian environment,respectively.We find an important relation that the total quantities of QFI of the cavity and reservoir are equal to unit during the dynamical evolution.The lost QFI of the cavity transfers to its corresponding reservoir with the same quantities simultaneously.Moreover,we also find that the detuning parameter and non-Markovian effect are two significant factors to affect the preservation of QFI.

外文摘要：We study the quantum Fisher information (QFI) dynamics of the phase parameter in the enlarged cavity reservoir systems at zero temperature under two situations of large N limit and non-Markovian environment, respectively. We find an important relation that the total quantities of QFI of the cavity and reservoir are equal to unit during the dynamical evolution. The lost QFI of the cavity transfers to its corresponding reservoir with the same quantities simultaneously. Moreover, we also find that the detuning parameter and non-Markovian effect are two significant factors to affect the preservation of QFI.