dorsal/arxiv
View SchemaOptimal conclusive teleportation of quantum states
| Authors | L. Roa, A. Delgado, I. Fuentes-Guridi |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0304002 |
| URL | https://arxiv.org/abs/quant-ph/0304002 |
| DOI | 10.1103/PhysRevA.68.022310 |
| Journal | Phys. Rev. A 68, 022310 (2003). |
Abstract
Quantum teleportation of qudits is revisited. In particular, we analyze the case where the quantum channel corresponds to a non-maximally entangled state and show that the success of the protocol is directly related to the problem of distinguishing non-orthogonal quantum states. The teleportation channel can be seen as a coherent superposition of two channels, one of them being a maximally entangled state thus, leading to perfect teleportation and the other, corresponding to a non-maximally entangled state living in a subspace of the d-dimensional Hilbert space. The second channel leads to a teleported state with reduced fidelity. We calculate the average fidelity of the process and show its optimality.
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"abstract": "Quantum teleportation of qudits is revisited. In particular, we analyze the\ncase where the quantum channel corresponds to a non-maximally entangled state\nand show that the success of the protocol is directly related to the problem of\ndistinguishing non-orthogonal quantum states. The teleportation channel can be\nseen as a coherent superposition of two channels, one of them being a maximally\nentangled state thus, leading to perfect teleportation and the other,\ncorresponding to a non-maximally entangled state living in a subspace of the\nd-dimensional Hilbert space. The second channel leads to a teleported state\nwith reduced fidelity. We calculate the average fidelity of the process and\nshow its optimality.",
"arxiv_id": "quant-ph/0304002",
"authors": [
"L. Roa",
"A. Delgado",
"I. Fuentes-Guridi"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.68.022310",
"journal_ref": "Phys. Rev. A 68, 022310 (2003).",
"title": "Optimal conclusive teleportation of quantum states",
"url": "https://arxiv.org/abs/quant-ph/0304002"
},
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