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Entanglement in SU(2)-invariant quantum spin systems

Schliemann, John (2003) Entanglement in SU(2)-invariant quantum spin systems. Phys. Rev. A 68, 012309.

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Date of publication of this fulltext: 22 May 2013 13:53

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Other URL: http://link.aps.org/doi/10.1103/PhysRevA.68.012309, http://pra.aps.org/pdf/PRA/v68/i1/e012309


Abstract

We analyze the entanglement of SU(2)-invariant density matrices of two spins S1, S2 using the Peres-Horodecki criterion. Such density matrices arise from thermal equilibrium states of isotropic-spin systems. The partial transpose of such a state has the same multiplet structure and degeneracies as the original matrix with the eigenvalue of largest multiplicity being non-negative. The case S1=S, ...

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Item type:Article
Date:11 July 2003
Institutions:Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group John Schliemann
Identification Number:
ValueType
10.1103/PhysRevA.68.012309DOI
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:No
Item ID:28238
Owner only: item control page

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