Supersymmetric Galileons

Understand

Galileon theories are of considerable interest since they allow for stable violations of the null energy condition.

• Since such violations could have occurred during a high-energy regime in the history of our universe, we are motivated to study supersymmetric extensions of these theories.
• This is carried out in this paper, where we construct generic classes of N=1 supersymmetric Galileon Lagrangians.
• They are shown to admit non-equivalent stress-energy tensors and, hence, vacua manifesting differing conditions for violating the null energy condition.