dorsal/arxiv
View SchemaQuantum teleportation of an arbitrary two qubit state and its relation to multipartite entanglement
| Authors | G. Rigolin |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0407219 |
| URL | https://arxiv.org/abs/quant-ph/0407219 |
| DOI | 10.1103/PhysRevA.71.032303 |
| Journal | Phys. Rev. A 71, 032303 (2005) |
Abstract
We explicitly show a protocol in which an arbitrary two qubit a|00> + b|01> + c|10> + d|11> is faithfully and deterministically teleported from Alice to Bob. We construct the 16 orthogonal generalized Bell states which can be used to teleport the two qubits. The local operations Bob must perform on his qubits in order to recover the teleported state is also constructed. They are restricted only to single qubit gates. This means that a CNOT gate is not necessary to complete the protocol. A generalization where N qubits is teleported is also shown. We define a generalized magic basis, which possesses interesting properties. These properties help us to suggest a generalized concurrence from which we construct a new measure of entanglement that has a clear physical interpretation: A multipartite state has maximum entanglement if it is a genuine quantum teleportation channel.
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"abstract": "We explicitly show a protocol in which an arbitrary two qubit a|00\u003e + b|01\u003e +\nc|10\u003e + d|11\u003e is faithfully and deterministically teleported from Alice to Bob.\nWe construct the 16 orthogonal generalized Bell states which can be used to\nteleport the two qubits. The local operations Bob must perform on his qubits in\norder to recover the teleported state is also constructed. They are restricted\nonly to single qubit gates. This means that a CNOT gate is not necessary to\ncomplete the protocol. A generalization where N qubits is teleported is also\nshown. We define a generalized magic basis, which possesses interesting\nproperties. These properties help us to suggest a generalized concurrence from\nwhich we construct a new measure of entanglement that has a clear physical\ninterpretation: A multipartite state has maximum entanglement if it is a\ngenuine quantum teleportation channel.",
"arxiv_id": "quant-ph/0407219",
"authors": [
"G. Rigolin"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.71.032303",
"journal_ref": "Phys. Rev. A 71, 032303 (2005)",
"title": "Quantum teleportation of an arbitrary two qubit state and its relation to multipartite entanglement",
"url": "https://arxiv.org/abs/quant-ph/0407219"
},
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