Multi-(super)graviton theory on topologically non-trivial backgrounds

TL;DR

This paper demonstrates that certain multi-supergraviton models on topologically non-trivial backgrounds can produce a positive cosmological constant, aligning with cosmological observations.

Contribution

It introduces multi-supergraviton models on non-trivial topologies that can generate a positive effective potential, a novel approach in supergravity theories.

Findings

Non-trivial topology can lead to positive contributions to the effective potential.

Multi-supergraviton models can produce a positive cosmological constant.

The results align with the observed accelerated expansion of the universe.

Abstract

It is shown that in some multi-supergraviton models, the contributions to the effective potential due to a non-trivial topology can be positive, giving rise in this way to a positive cosmological constant, as demanded by cosmological observations.