Physics @ Berkeley
Events in Physics
Title: String Theory 290Z    (Seminar)
Start Date: 11/05/2013
Time: 3:30 pm
Location: 402 Classroom 4th floor Old LeConte Hall, Campus
Speaker: Federico Bonetti
Affiliation: MPI
Contact Person: LaVern Navarro   (510) 642-2304

"F-theory on Spin (7) manifolds: realization via-M-theory and weak-coupling limit"



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.