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On Classification of N=2 Supersymmetric Theories, (e-mail uncorrupted version)
S. Cecotti, C. Vafa
We find a relation between the spectrum of solitons of massive quantum field theories in and the scaling dimensions of chiral fields at the conformal point. The conditi…
Quantum Affine Symmetry as Generalized Supersymmetry
A. LeClair, C. Vafa
The quantum affine $\CU_q (\hat{sl(2)}) $ symmetry is studied when is an even root of unity. The structure of this algebra allows a natural generalization of N=2 supersymmetr…
A New Supersymmetric Index
Sergio Cecotti, Paul Fendley, Ken Intriligator +1
We show that is an index for =2 supersymmetric theories in two dimensions, in the sense that it is independent of almost all deformations of the theor…
Massive Orbifold
S. Cecotti, C. Vafa
We study some aspects of 2d supersymmetric sigma models on orbifolds. It turns out that independently of whether the 2d QFT is conformal the operator products of twist operators ar…