Boundary Conformal Field Theory

Details Boundary Conformal Field Theory Boundary Conformal Field Theory

2004-11-21

arxiv.org/abs/hep-th/0411189v2

Encyclopedia of Mathematical Physics, (Elsevier, 2006)

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, 2 figures; v.2: corrected ghastly mistake in Eq. (41), and a missing author reference

Scientific paper

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.

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