*"F-theory on Spin (7) manifolds: realization via-M-theory and weak-coupling limit"*
Abstract:
The longstanding problem of accessing F-theory on
eight-dimensional manifolds of Spin(7) holonomy is addressed from an M-theory
perspective. A novel version of the duality from M-theory to F-theory is
proposed, in which M-theory on certain Spin(7) manifolds is dual to F-theory on
the same geometries times an interval. The relevant Spin(7) spaces are
constructed as antiholomorphic quotients of elliptically fibered Calabi-Yau
fourfolds. The F-theory effective action is discussed by uplifting the M-theory
effective action from three to four dimensions. The Type IIB weak-coupling
limit of these setups is analyzed. |