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Connections between relative entropy of entanglement and geometric measure of entanglement
Univ. of Illinois at Urbana-Champaign, USA .
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical and Analytical Chemistry, Quantum Chemistry. (Quantum information theory)
Univ. of Illinois at Urbana-Champaign, USA .
Hewlett-Packard Laboratories, Bristol, UK.
2004 (English)In: Quantum information & computation, ISSN 1533-7146, Vol. 4, 252- p.Article in journal (Refereed) Published
Abstract [en]

As two of the most important entanglement measures--the entanglement of formation and the entanglement of distillation--have so far been limited to bipartite settings, the study of other entanglement measures for multipartite systems appears necessary. Here, connections between two other entanglement measures--the relative entropy of entanglement and the geometric measure of entanglement--are investigated. It is found that for arbitrary pure states the latter gives rise to a lower bound on the former. For certain pure states, some bipartite and some multipartite, this lower bound is saturated, and thus their relative entropy of entanglement can be found analytically in terms of their known geometric measure of entanglement. For certain mixed states, upper bounds on the relative entropy of entanglement are also established. Numerical evidence strongly suggests that these upper bounds are tight, i.e., they are actually the relative entropy of entanglement.

Place, publisher, year, edition, pages
2004. Vol. 4, 252- p.
National Category
Physical Sciences
Research subject
Physics
Identifiers
URN: urn:nbn:se:uu:diva-151423OAI: oai:DiVA.org:uu-151423DiVA: diva2:409852
Note
Additional address (M. Ericsson): Univ. of Illinois at Urbana-Champaign, USA; Institute for Quantum Computing, Dept. of Physics, Univ. of Waterloo, CanadaAvailable from: 2011-04-11 Created: 2011-04-11 Last updated: 2017-12-11Bibliographically approved

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Ericsson, Marie

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