The geometry of the limit ofN = 2minimal models

Stefan Fredenhagen, Cosimo Restuccia
2013 Journal of Physics A: Mathematical and Theoretical  
We consider the limit of two-dimensional N=(2,2) superconformal minimal models when the central charge approaches c=3. Starting from a geometric description as non-linear sigma models, we show that one can obtain two different limit theories. One is the free theory of two bosons and two fermions, the other one is a continuous orbifold thereof. We substantiate this claim by detailed conformal field theory computations.
doi:10.1088/1751-8113/46/4/045402 fatcat:x3bki56ekzenrfpteznad3b7sq