## “School of Physic”

Back to Papers Home
Back to Papers of School of Physic

Paper   IPM / Physic / 6648
School of Physics
Title:   Zamalochikov's C-Theorem and the Logarithmic Conformal Field Theory
Author(s):
 1 M.R. Rahimi Tabar 2 S. Rouhani
Status:   Published
Journal: Phys. Lett. B
No.:  53
Vol.:  431
Year:  1998
Pages:   85-89
Supported by:  IPM
Abstract:
We consider perturbation of a conformal field theory by a pair of relevant logarithmic operators and calculate the beta function up to two loops. We observe that the beta function can not be derived from a potential. Thus the renormalization group trajectories are not always along decreasing values of the central charge. However there exists a domain of structure constants in which the c-theorem still holds.