dorsal/arxiv
View SchemaNonlocality of cluster states of qubits
| Authors | Valerio Scarani, Antonio Acin, Emmanuel Schenck, Markus Aspelmeyer |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0405119 |
| URL | https://arxiv.org/abs/quant-ph/0405119 |
| DOI | 10.1103/PhysRevA.71.042325 |
| Journal | Phys. Rev. A 71, 042325 (2005) |
Abstract
We investigate cluster states of qubits with respect to their non-local properties. We demonstrate that a Greenberger-Horne-Zeilinger (GHZ) argument holds for any cluster state: more precisely, it holds for any partial, thence mixed, state of a small number of connected qubits (five, in the case of one-dimensional lattices). In addition, we derive a new Bell inequality that is maximally violated by the 4-qubit cluster state and is not violated by the 4-qubit GHZ state.
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"abstract": "We investigate cluster states of qubits with respect to their non-local\nproperties. We demonstrate that a Greenberger-Horne-Zeilinger (GHZ) argument\nholds for any cluster state: more precisely, it holds for any partial, thence\nmixed, state of a small number of connected qubits (five, in the case of\none-dimensional lattices). In addition, we derive a new Bell inequality that is\nmaximally violated by the 4-qubit cluster state and is not violated by the\n4-qubit GHZ state.",
"arxiv_id": "quant-ph/0405119",
"authors": [
"Valerio Scarani",
"Antonio Acin",
"Emmanuel Schenck",
"Markus Aspelmeyer"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.71.042325",
"journal_ref": "Phys. Rev. A 71, 042325 (2005)",
"title": "Nonlocality of cluster states of qubits",
"url": "https://arxiv.org/abs/quant-ph/0405119"
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