dorsal/arxiv
View SchemaFidelity of Quantum Teleportation through Noisy Channels
| Authors | Sangchul Oh, Soonchil Lee, Hai-woong Lee |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0206173 |
| URL | https://arxiv.org/abs/quant-ph/0206173 |
| DOI | 10.1103/PhysRevA.66.022316 |
| Journal | Phys. Rev. A 66, 022316 (2002). |
Abstract
We investigate quantum teleportation through noisy quantum channels by solving analytically and numerically a master equation in the Lindblad form. We calculate the fidelity as a function of decoherence rates and angles of a state to be teleported. It is found that the average fidelity and the range of states to be accurately teleported depend on types of noise acting on quantum channels. If the quantum channels is subject to isotropic noise, the average fidelity decays to 1/2, which is smaller than the best possible value 2/3 obtained only by the classical communication. On the other hand, if the noisy quantum channel is modeled by a single Lindblad operator, the average fidelity is always greater than 2/3.
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"abstract": "We investigate quantum teleportation through noisy quantum channels by\nsolving analytically and numerically a master equation in the Lindblad form. We\ncalculate the fidelity as a function of decoherence rates and angles of a state\nto be teleported. It is found that the average fidelity and the range of states\nto be accurately teleported depend on types of noise acting on quantum\nchannels. If the quantum channels is subject to isotropic noise, the average\nfidelity decays to 1/2, which is smaller than the best possible value 2/3\nobtained only by the classical communication. On the other hand, if the noisy\nquantum channel is modeled by a single Lindblad operator, the average fidelity\nis always greater than 2/3.",
"arxiv_id": "quant-ph/0206173",
"authors": [
"Sangchul Oh",
"Soonchil Lee",
"Hai-woong Lee"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.66.022316",
"journal_ref": "Phys. Rev. A 66, 022316 (2002).",
"title": "Fidelity of Quantum Teleportation through Noisy Channels",
"url": "https://arxiv.org/abs/quant-ph/0206173"
},
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