dorsal/arxiv
View SchemaQuantum capacity of channel with thermal noise
| Authors | Xiao-yu Chen |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0602095 |
| URL | https://arxiv.org/abs/quant-ph/0602095 |
Abstract
The quantum capacity of thermal noise channel is studied. The extremal input state is obtained at the postulation that the coherent information is convex or concave at its vicinity. When the input energy tends to infinitive, it is verified by perturbation theory that the coherent information reaches its maximum at the product of identical thermal state input. The quantum capacity is obtained for lower noise channel and it is equal the one shot capacity.
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"abstract": "The quantum capacity of thermal noise channel is studied. The extremal input\nstate is obtained at the postulation that the coherent information is convex or\nconcave at its vicinity. When the input energy tends to infinitive, it is\nverified by perturbation theory that the coherent information reaches its\nmaximum at the product of identical thermal state input. The quantum capacity\nis obtained for lower noise channel and it is equal the one shot capacity.",
"arxiv_id": "quant-ph/0602095",
"authors": [
"Xiao-yu Chen"
],
"categories": [
"quant-ph"
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"title": "Quantum capacity of channel with thermal noise",
"url": "https://arxiv.org/abs/quant-ph/0602095"
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