Abstract
Some problems of quantum information, cloning, estimation and testing of states, universal coding etc., are special example of the following `state convertibility' problem. In this paper, we consider the dual of this problem, 'observable conversion problem'. Given families of operators $\{L_θ}\}_{θ\inΘ}$ and $\{M_θ}\}_{θ\inΘ}$ , we ask whether there is a completely positive (sub) unital map which sends $\{L_θ}\}$ to $\{M_θ}\}$ for each θ. We give necessary and sufficient conditions for the convertibility in some special cases.
Connections
Explore this paper’s authors, topics and related work.
Building this map preview
BZPEER is loading the nearby papers, people, topics and institutions for this page.
Reviews 0
Write a review
No reviews yet.
Discussion 0
Add a comment
No comments yet.