What if? - Exploring the Multiverse through Euclidean wormholes

Understand

We present Euclidean wormhole solutions describing possible bridges within the multiverse.

• The study is carried out in the framework of the third quantization.
• The matter content is modelled through a scalar field which supports the existence of a whole collection of universes.
• The instanton solutions describe Euclidean solutions that connect baby universes with asymptotically de Sitter universes.