Type IIA Orientifold Limit of M-Theory on Compact Joyce 8-Manifold of Spin(7)-Holonomy
نویسندگان
چکیده
We show that M-theory compactified on a compact Joyce 8-manifold of Spin(7)holonomy, which yields an effective theory in D = 3 with N = 1 supersymmetry, admits at some special points in it moduli space a description in terms of type IIA theory on an orientifold of compact Joyce 7-manifold of G2-holonomy. We find the evidence in favour of this duality by computing the massless spectra on both M-thory side and type IIA side. For the latter, we compute the massless spectra by going to the orbifold limit of the Joyce 7-manifold. ∗Email :[email protected] †Formerly, Mehta Research Institute for Mathematics and Mathematical Physics.
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