1 research outputs found
BCFT and OSFT moduli: an exact perturbative comparison
Starting from the pseudo- gauge solution for marginal
deformations in OSFT, we analytically compute the relation between the
perturbative deformation parameter in the solution and the BCFT
marginal parameter , up to fifth order, by evaluating the Ellwood
invariants. We observe that the microscopic reason why and
are different is that the OSFT propagator renormalizes contact term
divergences differently from the contour deformation used in BCFTComment: 26+5 pages, 10 figures V2: minor improvements, published versio