dorsal/arxiv
View SchemaEntanglement-assisted capacity of constrained quantum channel
| Authors | A. S. Holevo |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0211170 |
| URL | https://arxiv.org/abs/quant-ph/0211170 |
| DOI | 10.1117/12.517873 |
Abstract
In this paper we fill the gap in previous works by proving the formula for entanglement-assisted capacity of quantum channel with additive constraint (such as bosonic Gaussian channel). The main tools are the coding theorem for classical-quantum constrained channels and a finite dimensional approximation of the input density operators for entanglement-assisted capacity. The new version contains improved formulation of sufficient conditions under which suprema in the capacity formulas are attained.
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"abstract": "In this paper we fill the gap in previous works by proving the formula for\nentanglement-assisted capacity of quantum channel with additive constraint\n(such as bosonic Gaussian channel). The main tools are the coding theorem for\nclassical-quantum constrained channels and a finite dimensional approximation\nof the input density operators for entanglement-assisted capacity. The new\nversion contains improved formulation of sufficient conditions under which\nsuprema in the capacity formulas are attained.",
"arxiv_id": "quant-ph/0211170",
"authors": [
"A. S. Holevo"
],
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"quant-ph"
],
"doi": "10.1117/12.517873",
"title": "Entanglement-assisted capacity of constrained quantum channel",
"url": "https://arxiv.org/abs/quant-ph/0211170"
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