{ "id": "1701.06963", "version": "v1", "published": "2017-01-24T16:27:57.000Z", "updated": "2017-01-24T16:27:57.000Z", "title": "Codes for Simultaneous Transmission of Quantum and Classical Information", "authors": [ "Markus Grassl", "Sirui Lu", "Bei Zeng" ], "comment": "5 pages", "categories": [ "quant-ph", "cs.IT", "math.IT" ], "abstract": "We consider the characterization as well as the construction of quantum codes that allow to transmit both quantum and classical information, which we refer to as `hybrid codes'. We construct hybrid codes $[[n,k:m,d]]_q$ with length $n$ and distance $d$, that simultaneously transmit $k$ qudits and $m$ symbols from a classical alphabet of size $q$. Many good codes such as $[[7,1:1,3]]_2$, $[[9,2:2,3]]_2$, $[[10,3:2,3]]_2$, $[[11,1:2,4]]_2$ are found, with better parameters than hybrid codes obtained from the best known stabilizer quantum code. We also find a nonadditive $((11,2:20,3))_2$ code, with parameters beating the best known nonadditive quantum codes.", "revisions": [ { "version": "v1", "updated": "2017-01-24T16:27:57.000Z" } ], "analyses": { "keywords": [ "classical information", "simultaneous transmission", "stabilizer quantum code", "construct hybrid codes", "nonadditive quantum codes" ], "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable" } } }