Boundary Conformal Field Theory
Abstract
Boundary conformal field theory (BCFT) is simply the study of conformal field theory (CFT) in domains with a boundary. It gains its significance because, in some ways, it is mathematically simpler: the algebraic and geometric structures of CFT appear in a more straightforward manner; and because it has important applications: in string theory in the physics of open strings and D-branes, and in condensed matter physics in boundary critical behavior and quantum impurity models. In this article, however, I describe the basic ideas from the point of view of quantum field theory, without regard to particular applications nor to any deeper mathematical formulations.
Cite
@article{arxiv.hep-th/0411189,
title = {Boundary Conformal Field Theory},
author = {John Cardy},
journal= {arXiv preprint arXiv:hep-th/0411189},
year = {2008}
}
Comments
17 pages, 2 figures; v.2: corrected ghastly mistake in Eq. (41), and a missing author reference