Comment on "Compare Quantum Operation Sensitivity for Different Distance Measures"  

作　　者：高云峰 冯健 

机构地区：[1]Department of Physics,Liaocheng University

出　　处：《Communications in Theoretical Physics》2011年第11期824-826,共3页理论物理通讯（英文版）

基　　金：Supported by the Natural Science Foundation of Shandong Province under Grant No. ZR2009AM019

摘　　要：We make comments on the conclusions of the paper:'Compare Quantum Operation Sensitivity for DifferentDistance Measures' [Commun.Theor.Phys.53 (2010)635],and give a physical example to describe the non-equivalenceof the fidelity and the trace distance.We prove that the fidelity is not more sensitive to a quantum operation than thetrace distance.

关 键 词：FIDELITY trace distance quantum operation 

分 类 号：O413[理学—理论物理] TN958.92[理学—物理]