典型文献
The uncertainty and quantum correlation of measurement in double quantum-dot systems
文献摘要：
In this work,we study the entropic uncertainty and quantum discord in two double-quantum-dot(DQD)system coupled via a transmission line resonator(TLR).Explicitly,the dynamics of the systemic quantum correla-tion and measured uncertainty are analysed with respect to a general X-type state as the initial state.Interestingly,it is found that the different parameters,including the eigenvalue a of the coherent state,detuning amount δ,frequency ω and the coupling constant g,have subtle effects on the dynamics of the entropic uncertainty,such as the oscillation period of the uncertainty.It is clear to reveal that the quantum discord and the lower bound of the entropic uncertainty are anti-correlated when the initial state of the system is the Werner-type state,while quantum discord and the lower bound of the entropic uncertainty are not anti-correlated when the initial state of the system is the Bell-diagonal state.Thereby,we claim that the current investigation would provide an insight into the entropic uncertainty and quantum correlation in DQDs system,and are basically of importance to quantum precision measurement in practical quantum information processing.
文献关键词：
中图分类号：
作者姓名：
Long-Yu Cheng;Fei Ming;Fa Zhao;Liu Ye;Dong Wang
作者机构：
School of Physics and Optoelectronic Engineering,Anhui University,Hefei 230601,China;CAS Key Laboratory of Quantum Information,University of Science and Technology of China,Hefei 230026,China
文献出处：
引用格式：
[1]Long-Yu Cheng;Fei Ming;Fa Zhao;Liu Ye;Dong Wang-.The uncertainty and quantum correlation of measurement in double quantum-dot systems)[J].物理学前沿,2022(06):200-207
A类：
DQDs
B类：
uncertainty,quantum,correlation,measurement,double,dot,systems,this,work,study,entropic,discord,two,coupled,via,transmission,line,resonator,TLR,Explicitly,dynamics,systemic,measured,are,analysed,respect,general,type,state,initial,Interestingly,found,that,different,parameters,including,eigenvalue,coherent,detuning,amount,frequency,coupling,constant,have,subtle,effects,such,oscillation,period,It,clear,reveal,lower,bound,anti,correlated,when,Werner,while,not,Bell,diagonal,Thereby,claim,current,investigation,would,provide,insight,into,basically,importance,precision,practical,information,processing
AB值：
0.465344
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