Three-form multiplet and Inflation

Understand

Most successful models of inflation in supergravity have a shift symmetry for the inflaton and contain a stabilizer field coupled to the inflaton in a particular way.

• We argue that the natural interpretation of the stabilizer, from the viewpoint of the shift symmetry, is a three-form multiplet.
• Its coupling to the inflaton is uniquely determined by the shift symmetry and the invariance under three-form gauge transformations and has a natural string theory interpretation.