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Higher order conformal perturbation theory
Author(s) -
SchmidtColinet C.
Publication year - 2009
Publication title -
fortschritte der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/prop.200900036
Subject(s) - boundary conformal field theory , conformal map , conformal field theory , diagonal , mathematical physics , torus , boundary value problem , perturbation (astronomy) , conformal symmetry , physics , primary field , perturbation theory (quantum mechanics) , mathematics , mathematical analysis , mixed boundary condition , geometry , robin boundary condition , quantum mechanics
We consider a string stretched between two diagonal branes on a bosonic torus under a perturbation of one of the radii. In the world‐sheet description, this corresponds to a perturbation of a conformal field theory with two boundary components. A term in the second order boundary RG equations is related to the change of conformal dimension of the boundary changing operator.