Effective Cuscuton Theory

Understand

Cuscuton field theory is an extension of general relativity that does not introduce additional propagating degrees of freedom, or violate relativistic causality.

• We construct a general geometric description of the cuscuton field theory by introducing curvature corrections to both the volume (potential) and the surface (kinetic) terms in the original cuscuton action.
• Our assumptions involve a stack of spacelike branes, separated by 4-dimensional bulks.
• We conjecture that the cuscuton, initially a discrete field, becomes continuous in the limit, there are many such transitions.