Quantum correlations of two-qubit states with one maximally mixed marginal

Antony Milne, David Jennings, Sania Jevtic, and Terry Rudolph
Phys. Rev. A 90, 024302 – Published 21 August 2014

Abstract

We investigate the entanglement, CHSH nonlocality, fully entangled fraction, and symmetric extendibility of two-qubit states that have a single maximally mixed marginal. Within this set of states, the steering ellipsoid formalism has recently highlighted an interesting family of so-called maximally obese states. These are found to have extremal quantum correlation properties that are significant in the steering ellipsoid picture and for the study of two-qubit states in general.

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  • Received 13 May 2014

DOI:https://doi.org/10.1103/PhysRevA.90.024302

©2014 American Physical Society

Authors & Affiliations

Antony Milne1,*, David Jennings1, Sania Jevtic2, and Terry Rudolph1

  • 1Controlled Quantum Dynamics Theory, Department of Physics, Imperial College London, London SW7 2AZ, UK
  • 2Mathematical Sciences, Brunel University, Uxbridge UB8 3PH, UK

  • *antony.milne@gmail.com

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Vol. 90, Iss. 2 — August 2014

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