4D, N=1 Born-Infeld supergravity
S. James Gates, Jr. (Univ. Maryland, USA), Sergei V. Ketov (Univ., Kaiserslautern, Germany)
TL;DR
This paper introduces the first superspace-based 4D, N=1 supergravity analogues of the Born-Infeld action, including new generalizations of Weyl and Einstein supergravity, and discusses their relation to 5D AdS supergravity.
Contribution
It presents the first construction of 4D, N=1 Born-Infeld supergravity actions using superspace, including novel generalizations of Weyl and Einstein supergravity.
Findings
New Born-Infeld type Weyl supergravity action
New Born-Infeld type Einstein supergravity action
Connection to 5D AdS supergravity
Abstract
We propose the 4D, N=1 supergravitational analogues (avatars) of the 4D, N=1 supersymmetric Born-Infeld action in four dimensions for the first time, by using superspace. In particular, a new Born-Infeld type generalization of the Weyl supergravity action is given. A natural new Born-Infeld type generalization of the Einstein supergravity is found as well. We also brielfy discuss a construction of the four-dimensional Born-Infeld-Einstein supergravity from the AdS supergravity in five dimensions, which seems to be very natural in our approach.
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