Addendum to "Relational Hamiltonian for group field theory"

Abstract

In this addendum to [Phys. Rev. D 99 (2019) 086017], we extend the construction of a Hamiltonian formalism to a new class of group field theory actions with a kinetic term that is local in the group variables and depends only on their derivatives; such a kinetic term will couple magnetic indices of opposite sign in the Peter-Weyl decomposition. The main results of [Phys. Rev. D 99 (2019) 086017] for the resulting cosmology extend to this case.

arXiv comment4 pages, addendum to arXiv:1810.01259

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• Relational dynamics and Page-Wootters formalism in group field theory
• Stationary cosmology in group field theory
• Cosmological implications of the hydrodynamical phase of group field theory