Abstract
We show that two dimensionalN=2 superconformal field theories cannot be constructed by applying the supersymmetric extension of the GKO construction to the so-called special subalgebras, i.e. subalgebras for which at least one generator associated to a root of the subalgebra does not correspond to a root of the algebra itself. We thus prove the completeness of the classification ofN=2 supersymmetric coset models obtained by Kazama and Suzuki. Furthermore we point out that compared to their papers an additional criterion has to be added in theN=2 conditions.
Similar content being viewed by others
References
Banks, T., Dixon, L. J., Friedan, D., Martinec, E.: Phenomenology and conformal field theory or can string theory predict the weak mixing angle? Nucl. Phys.B299, 613–626 (1988)
Cahn, R. N.: Semi-simple Lie-algebras and their representations. Menlo Park, CA: Frontiers in Physics, Benjamin Cummings 1984
Fuchs, J.: Affine Lie algebras and quantum groups. An introduction with applications in conformal field theory. Cambridge Monographs on Mathematical Physics, Cambridge: Cambridge University Press 1992
Goddard, P., Kent, A., Olive, D.: Virasoro algebras and coset spaces models. Phys. Lett.152B, 88–102 (1985).
Goddard, P., Kent, A., Olive, D.: Unitary representations of the Virasoro and super-Virasoro algebras. Commun. Math. Phys.103, 105–119 (1986)
Humphreys, J. E.: Introduction to Lie algebras and representation theory, Third Printing, Revised. Berlin, Heidelberg, New York: Springer 1980
Kazama, Y., Suzuki, H.: NewN=2 superconformal field theories and superstring compactification. Nucl. Phys.B321, 232–268 (1989)
Kazama, Y., Suzuki, H.: Characterization ofN=2 superconformal models generated by the coset space method. Phys. Lett.216B, 112–116 (1989)
Lerche, W., Vafa, C., Warner, N.: Chiral rings inN=2 superconformal theories. Nucl. Phys.B324, 427–474 (1989)
Author information
Authors and Affiliations
Additional information
Communicated by K. Gawedzki
Work supported by the Studienstiftung des deutschen Volkes
Rights and permissions
About this article
Cite this article
Schweigert, C. On the classification ofN=2 superconformal coset theories. Commun.Math. Phys. 149, 425–431 (1992). https://doi.org/10.1007/BF02097633
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02097633