N = 4 topological strings
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CitationBerkovits, Nathan, and Cumrun Vafa. 1995. “N = 4 Topological Strings.” Nuclear Physics B 433 (1): 123–80. https://doi.org/10.1016/0550-3213(94)00419-f.
AbstractWe show how to make a topological string theory starting from an N = 4 superconformal theory. The critical dimension for this theory is c ($) over cap = 2 (c = 6). It is shown that superstrings (in both the RNS and GS formulations) and critical N = 2 strings are special cases of this topological theory. Applications for this new topological theory include: (1) Proving the vanishing to all orders of all scattering amplitudes for the self-dual N = 2 string with flat background, with the exception of the three-point function and the closed-string partition function; (2) Showing that the topological partition function of the N = 2 string on the K3 background may be interpreted as computing the superpotential in harmonic superspace generated upon compactification of type II superstrings from 10 to 6 dimensions; and (3) Providing a new prescription for calculating superstring amplitudes which appears to be free of total-derivative ambiguities.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:41385062
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