摘要
We reinvestigate the one-way quantum deficit,which is a measure of quantum correlation emerging from a thermodynamical approach.We give a tight upper bound of the one-way quantum deficit for general mixed states,and give a sufficient condition for this bound.Finally,we discuss a universal way to evaluate the one-way quantum deficit for general two-qubit states.
基金
Supported by National Natural Science Foundation of China under Grant Nos. 11271237 and 61228305
