dorsal/arxiv
View SchemaConnections between relative entropy of entanglement and geometric measure of entanglement
| Authors | Tzu-Chieh Wei, Marie Ericsson, Paul M. Goldbart, William J. Munro |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0405002 |
| URL | https://arxiv.org/abs/quant-ph/0405002 |
| Journal | Quantum Inform. Compu. v4, p252 (2004) |
Abstract
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.
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"abstract": "As two of the most important entanglement measures--the entanglement of\nformation and the entanglement of distillation--have so far been limited to\nbipartite settings, the study of other entanglement measures for multipartite\nsystems appears necessary. Here, connections between two other entanglement\nmeasures--the relative entropy of entanglement and the geometric measure of\nentanglement--are investigated. It is found that for arbitrary pure states the\nlatter gives rise to a lower bound on the former. For certain pure states, some\nbipartite and some multipartite, this lower bound is saturated, and thus their\nrelative entropy of entanglement can be found analytically in terms of their\nknown geometric measure of entanglement. For certain mixed states, upper bounds\non the relative entropy of entanglement are also established. Numerical\nevidence strongly suggests that these upper bounds are tight, i.e., they are\nactually the relative entropy of entanglement.",
"arxiv_id": "quant-ph/0405002",
"authors": [
"Tzu-Chieh Wei",
"Marie Ericsson",
"Paul M. Goldbart",
"William J. Munro"
],
"categories": [
"quant-ph"
],
"journal_ref": "Quantum Inform. Compu. v4, p252 (2004)",
"title": "Connections between relative entropy of entanglement and geometric measure of entanglement",
"url": "https://arxiv.org/abs/quant-ph/0405002"
},
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