Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2006-04-04
JHEP0608:067,2006
Physics
High Energy Physics
High Energy Physics - Theory
28 pages
Scientific paper
10.1088/1126-6708/2006/08/067
We study the topologically twisted cigar, namely the SL(2,R)/U(1) superconformal field theory at arbitrary level, and find the BRST cohomology of the topologically twisted N=2 theory. We find a one to one correspondence between the spectrum of the twisted coset and singular vectors in the Wakimoto modules constructed over the SL(2,R) current algebra. The topological cigar cohomology is the crucial ingredient in calculating the closed string spectrum of topological strings on non-compact Gepner models.
Ashok Sujay K.
Troost Jan
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