dorsal/arxiv
View SchemaTwo-way and three-way negativities of three qubit entangled states
| Authors | S. Shelly Sharma, N. K. Sharma |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0609012 |
| URL | https://arxiv.org/abs/quant-ph/0609012 |
| DOI | 10.1103/PhysRevA.76.012326 |
| Journal | Phys. Rev. A 76, 012326 (2007). |
Abstract
We propose to quantify three qubit entanglement using global negativity along with K-way negativities, where K=2 and 3. K-way partial transpose with respect to a subsystem is defined so as to shift the focus to K-way coherences of the composite system instead of K subsystems of the composite system. While genuine tripartite entanglement of three qubit composite system is generated by 3-way coherences, tripartite entanglement can be present due to 2-way coherences as well.
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"abstract": "We propose to quantify three qubit entanglement using global negativity along\nwith K-way negativities, where K=2 and 3. K-way partial transpose with respect\nto a subsystem is defined so as to shift the focus to K-way coherences of the\ncomposite system instead of K subsystems of the composite system. While genuine\ntripartite entanglement of three qubit composite system is generated by 3-way\ncoherences, tripartite entanglement can be present due to 2-way coherences as\nwell.",
"arxiv_id": "quant-ph/0609012",
"authors": [
"S. Shelly Sharma",
"N. K. Sharma"
],
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"quant-ph"
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"doi": "10.1103/PhysRevA.76.012326",
"journal_ref": "Phys. Rev. A 76, 012326 (2007).",
"title": "Two-way and three-way negativities of three qubit entangled states",
"url": "https://arxiv.org/abs/quant-ph/0609012"
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