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- URN to cite this document:
- urn:nbn:de:bvb:355-epub-282386
- DOI to cite this document:
- 10.5283/epub.28238
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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