Complementarity of quantum correlations in cloning and deleting of quantum states

Sazim, Sk ; Chakrabarty, Indranil ; Datta, Annwesha ; Pati, Arun K. (2015) Complementarity of quantum correlations in cloning and deleting of quantum states Physical Review A, 91 (6). Article ID 062311. ISSN 1050-2947

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Official URL: http://journals.aps.org/pra/abstract/10.1103/PhysR...

Related URL: http://dx.doi.org/10.1103/PhysRevA.91.062311

Abstract

We quantify the amount of correlation generated between two different output modes in imperfect cloning and deletion processes. We use three different measures of quantum correlations and investigate their role in determining the fidelity of cloning and deletion. We obtain a bound on the total correlation generated in the successive processes of cloning and deleting operations. This bound displays a different kind of complementary relationship between the quantum correlations required in generating a copy of a quantum state and the amount of correlation required to bring it back to the original state by deleting and vice versa. Our result shows that the better we clone (delete) a state, the more difficult it will be to bring the state back to its original form by the process of deleting (cloning).

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:105523
Deposited On:09 Mar 2018 11:42
Last Modified:09 Mar 2018 11:42

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