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4D effective action from non-Abelian DBI action with magnetic flux background

27 Aug 2021, 13:30
20m
ZR2

ZR2

New Developments in String Theory New Developments in String Theory

Speaker

Yoshihiko Abe

Description

We derive 4D $\mathcal{N}=1$ supersymmetric effective theory from 10D non-Abelian Dirac-Born-Infeld action compactified on a six dimensional tori with magnetic flux on the D-branes.
For the 10D action, we use a symmetrized trace prescription and focus on the bosonic part.
4D chiral fermions can arise via index theorem for the background flux.
The gauge coupling and the matter K\"{a}hler metric are read from the 10D action, which depend on closed string moduli and the fluxes.
We read the superpotential from an F-term scalar quartic interaction derived from the 10D action, and discuss the contribution of the matter K\"{a}hler metric to the scalar potential is consistent with the supergravity formulation.
This talk is based on the collaboration with Tetsutaro Higaki, Tatsuo Kobayashi, Shintaro Takada and Rei Takahashi.

Primary authors

Mr Rei Takahashi Mr Shintaro Takada (Hokkaido University) Dr Tatsuo Kobayashi (Hokkaido University) Tetsutaro Higaki (Keio University) Yoshihiko Abe

Presentation materials