PIRSA:11090066

Towards Matter Inflation in Heterotic String Theory

APA

Halter, S. (2011). Towards Matter Inflation in Heterotic String Theory. Perimeter Institute. https://pirsa.org/11090066

MLA

Halter, Sebastian. Towards Matter Inflation in Heterotic String Theory. Perimeter Institute, Sep. 06, 2011, https://pirsa.org/11090066

BibTex

          @misc{ pirsa_11090066,
            doi = {},
            url = {https://pirsa.org/11090066},
            author = {Halter, Sebastian},
            keywords = {Cosmology},
            language = {en},
            title = {Towards Matter Inflation in Heterotic String Theory},
            publisher = {Perimeter Institute},
            year = {2011},
            month = {sep},
            note = {PIRSA:11090066 see, \url{https://pirsa.org}}
          }
          

Abstract

I will discuss the phenomenologically interesting scenario of matter inflation in supersymmetric hybrid inflation models. The inflaton resides in a gauge non-singlet matter multiplet and the eta-problem is solved by a "Heisenberg" symmetry. This symmetry relates the inflaton with a modulus field and we stabilize this modulus via corrections to the Kähler potential. The Heisenberg symmetry arises naturally for the untwisted matter fields in heterotic orbifolds. A way to embed matter inflation into heterotic orbifold compactifications is suggested and moduli stabilization in the extended setup is discussed. I argue that the corrections from moduli stabilization may not spoil the flatness of the inflaton potential at large radius.