1993/02/14 by Costas Kounnas, Kounnas, Costas
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #hep-th
paper · pdf · doi:10.48550/arxiv.hep-th/9302058
Latex file, 15pp, CERN-TH.6790/93
arxiv created 1993/02/14 · arxiv updated 2009/11/30
We present a way of constructing string solutions around non-trivial gravitational backgrounds. The proposed solutions are constructed using N = 4 superconformal building blocks with c = 4. We give two different and inequivalent realizations of non-trivial four-dimensional subspaces, and we show the emergence of the N = 4 globally defined superconformal symmetry. The existence of N = 4 world-sheet symmetry stabilizes our solutions and implies in target space a number of covariantized supersymmetries around space-time dependent gravitational and dilaton backgrounds.