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A dissipative scheme to approach the boundary of two-qubit entangled mixed states

Authors
  • Campbell, S.
  • Paternostro, M.
Type
Published Article
Publication Date
Feb 18, 2009
Submission Date
Dec 19, 2008
Identifiers
DOI: 10.1103/PhysRevA.79.032314
Source
arXiv
License
Yellow
External links

Abstract

We discuss the generation of states close to the boundary-family of maximally entangled mixed states as defined by the use of concurrence and linear entropy. The coupling of two qubits to a dissipation-affected bosonic mode is able to produce a bipartite state having, for all practical purposes, the entanglement and purity properties of one of such boundary states. We thoroughly study the effects that thermal and squeezed character of the bosonic mode have in such a process and we discuss tolerance to qubit phase-damping mechanisms. The non-demanding nature of the scheme makes it realizable in a matter-light based physical set-up, which we address in some details.

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