Theoretical High Energy Seminar – Niels Bohr Institute - University of Copenhagen

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Theoretical High Energy Seminar

Speaker: Amjad Ashoorioon (Uppsala)

Title: Gauged M-flation and 1/N Resolution to the eta Problem in Many-Fields Inflationary Models

Abstract: In the first part of my seminar, I will talk about GaugedM-flation, an inflationary model in which inflation is driven by three NxNscalar field matrices in the adjoint representation of U(N) gauge group. Iwill show how the Gauged M-flation model could be derived from the dynamicsof a stack of D3-branes in an appropriate background flux. In the secondpart, I will show how the eta problem, that the slow-roll parameter eta
receives order one quantum loop corrections, is absent in inflationary
models having a large number of scalar fields.