首页|Dilation,discrimination and Uhlmann's theorem of link products of quantum channels
Dilation,discrimination and Uhlmann's theorem of link products of quantum channels
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We establish the Stinespring dilation theorem of the link product of quantum channels in two different ways,discuss the discrimination of quantum channels,and show that the distinguishability can be improved by self-linking each quantum channel n times as n grows.We also find that the maximum value of Uhlmann's theorem can be achieved for diagonal channels.
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