Entropy 2010, 12(7), 1799-1832; doi:10.3390/e12071799
Article

Roofs and Convexity

Armin Uhlmannemail
Institute for Theoretical Physics, University of Leipzig, PB 100 920, D-04009 Leipzig, Germany
Received: 5 June 2010; in revised form: 5 July 2010 / Accepted: 9 July 2010 / Published: 20 July 2010
(This article belongs to the Special Issue Quantum Information)
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Abstract: Convex roof extensions are widely used to create entanglement measures in quantum information theory. The aim of the article is to present some tools which could be helpful for their treatment. Sections 2 and 3 introduce into the subject. It follows descriptions of the Wootters' method, of the "subtraction procedure", and examples on how to use symmetries.
Keywords: roofs; convex roof extensions; entanglement measures

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MDPI and ACS Style

Uhlmann, A. Roofs and Convexity. Entropy 2010, 12, 1799-1832.

AMA Style

Uhlmann A. Roofs and Convexity. Entropy. 2010; 12(7):1799-1832.

Chicago/Turabian Style

Uhlmann, Armin. 2010. "Roofs and Convexity." Entropy 12, no. 7: 1799-1832.

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