English

Anomaly free quantum dynamics for Euclidean LQG

General Relativity and Quantum Cosmology 2022-11-28 v2 High Energy Physics - Theory

Abstract

Classical gravitational evolution admits an elegant and compact re-expression in terms of gauge covariant generalizations of Lie derivatives with respect to a spatial phase space dependent su(2)su(2) valued vector field called the Electric Shift [1]. A quantum dynamics for Euclidean Loop Quantum Gravity which ascribes a central role to the Electric Shift operator is derived in [2]. Here  we  show  that  this  quantum  dynamics  is  nontrivially  anomalyHere\; we\; show\; that\; this \;quantum\; dynamics\; is\; nontrivially\; anomaly freefree. Specifically, we show that on a suitable space of off shell states (a) the (non-vanishing) commutator between a pair of Hamiltonian constraint operators mirrors the Poisson bracket between their classical correspondents, (b) the group of finite spatial diffeomorphisms is faithfully represented and (c) the action of the Hamiltonian constraint operator is diffeomorphism covariant with respect to the action of spatial diffeomorphisms.

Keywords

Cite

@article{arxiv.2205.10779,
  title  = {Anomaly free quantum dynamics for Euclidean LQG},
  author = {Madhavan Varadarajan},
  journal= {arXiv preprint arXiv:2205.10779},
  year   = {2022}
}

Comments

101 pages, 10 figures, minor change, only one reference corrected

R2 v1 2026-06-24T11:24:39.238Z