Spin foam models as energetic causal sets

Understand

Energetic causal sets are causal sets endowed by a flow of energy-momentum between causally related events.

• These incorporate a novel mechanism for the emergence of space-time from causal relations.
• Here we construct a spin foam model which is also an energetic causal set model.
• This model is closely related to the model introduced in parallel by Wolfgang Wieland in arXiv:1407.0025, and this construction makes use of results used there.