Vanishing quantum discord is necessary and sufficient for completely positive maps

  • Shabani A
  • Lidar D
  • 16

    Readers

    Mendeley users who have this article in their library.
  • N/A

    Citations

    Citations of this article.

Abstract

We identify the class of initial system-bath states for which quantum dynamics is equivalent to a completely positive map between the initial and final system states. This is the class of separable states with vanishing quantum discord. We obtain this result by first introducing a class of states we call "special linear", which are of full measure in the set of mixed bipartite states, and for which quantum dynamics is always a Hermitian map.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • a. Shabani

  • D. a Lidar

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free