Topological approach toward quantum codes with realistic physical constraints
Abstract
The following open problems, which concern a fundamental limit on coding properties of quantum codes with realistic physical constraints, are analyzed and partially answered here: (a) the upper bound on code distances of quantum error-correcting codes with geometrically local generators, (b) the feasibility of a self-correcting quantum memory. To investigate these problems, we study stabilizer codes supported by local interaction terms with translation and scale symmetries on a -dimensional lattice. Our analysis uses the notion of topology emerging in geometric shapes of logical operators, which sheds a surprising new light on theory of quantum codes with physical constraints.
Cite
@article{arxiv.1010.3282,
title = {Topological approach toward quantum codes with realistic physical constraints},
author = {Beni Yoshida},
journal= {arXiv preprint arXiv:1010.3282},
year = {2011}
}
Comments
This paper has been withdrawn by the author. It is superseded by (and merged into) arXiv:1103.1885