dorsal/arxiv
View SchemaConcurrence in collective models
| Authors | J. Vidal |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0603108 |
| URL | https://arxiv.org/abs/quant-ph/0603108 |
| DOI | 10.1103/PhysRevA.73.062318 |
| Journal | Phys. Rev. A 73, 062318 (2006) |
Abstract
We review the entanglement properties in collective models and their relationship with quantum phase transitions. Focusing on the concurrence which characterizes the two-spin entanglement, we show that for first-order transition, this quantity is singular but continuous at the transition point, contrary to the common belief. We also propose a conjecture for the concurrence of arbitrary symmetric states which connects it with a recently proposed criterion for bipartite entanglement.
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"abstract": "We review the entanglement properties in collective models and their\nrelationship with quantum phase transitions. Focusing on the concurrence which\ncharacterizes the two-spin entanglement, we show that for first-order\ntransition, this quantity is singular but continuous at the transition point,\ncontrary to the common belief. We also propose a conjecture for the concurrence\nof arbitrary symmetric states which connects it with a recently proposed\ncriterion for bipartite entanglement.",
"arxiv_id": "quant-ph/0603108",
"authors": [
"J. Vidal"
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"doi": "10.1103/PhysRevA.73.062318",
"journal_ref": "Phys. Rev. A 73, 062318 (2006)",
"title": "Concurrence in collective models",
"url": "https://arxiv.org/abs/quant-ph/0603108"
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