dorsal/arxiv
View SchemaEntanglement tensor for a general pure multipartite quantum state
| Authors | Hoshang Heydari, Gunnar Björk |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0410124 |
| URL | https://arxiv.org/abs/quant-ph/0410124 |
| Journal | Quantum Information and Computation 5(2) (2005) 146-155 |
Abstract
We propose an entanglement tensor to compute the entanglement of a general pure multipartite quantum state. We compare the ensuing tensor with the concurrence for bipartite state and apply the tensor measure to some interesting examples of entangled three-qubit and four-qubit states. It is shown that in defining the degree of entanglement of a multi-partite state, one needs to make assumptions about the willingness of the parties to cooperate. We also discuss the degree of entanglement of the multi-qubit $\ket{W_{M}}$-states.
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"abstract": "We propose an entanglement tensor to compute the entanglement of a general\npure multipartite quantum state. We compare the ensuing tensor with the\nconcurrence for bipartite state and apply the tensor measure to some\ninteresting examples of entangled three-qubit and four-qubit states. It is\nshown that in defining the degree of entanglement of a multi-partite state, one\nneeds to make assumptions about the willingness of the parties to cooperate. We\nalso discuss the degree of entanglement of the multi-qubit\n$\\ket{W_{M}}$-states.",
"arxiv_id": "quant-ph/0410124",
"authors": [
"Hoshang Heydari",
"Gunnar Bj\u00f6rk"
],
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"quant-ph"
],
"journal_ref": "Quantum Information and Computation 5(2) (2005) 146-155",
"title": "Entanglement tensor for a general pure multipartite quantum state",
"url": "https://arxiv.org/abs/quant-ph/0410124"
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