Glueball inflation from gauge/ gravity duality

The Mandelstam and National Institutes for Theoretical Physics will host this seminar to be presented by Dr Lilia Anguelova (Bulgarian Academy of Sciences).

Cosmological inflation plays a crucial role in our present understanding of the universe. However, the standard field-theoretic models, used to describe it, suffer from a well-known problem at the quantum level, known as the eta-problem.

Anguelova will discuss an alternative set of models, which are based on having a composite (instead of a fundamental) inflation, which avoids the eta-problem entirely.

In these models the inflation is a glueball state in a strongly-coupled gauge sector. Since the relevant gauge theory is in a non-perturbative regime, the use of gauge/gravity duality as a powerful technical tool is essential.

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