Private quantum codes: introduction and connection with higher rank numerical ranges

Autor:	Kribs, D. W., Plosker, S.
Rok vydání:	2014
Předmět:	Mathematics - Operator Algebras Quantum Physics 15A60 47A12 81P68 81P94
Zdroj:	Linear and Multilinear Algebra, 62, pp. 639-647, 2014
Druh dokumentu:	Working Paper
DOI:	10.1080/03081087.2013.801963
Popis:	We give a brief introduction to private quantum codes, a basic notion in quantum cryptography and key distribution. Private code states are characterized by indistinguishability of their output states under the action of a quantum channel, and we show that higher rank numerical ranges can be used to describe them. We also show how this description arises naturally via conjugate channels and the bridge between quantum error correction and cryptography. Comment: 9 pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1407.1350 Zobrazit plný text záznamu View this record from Arxiv