Cosmological Effective Hamiltonian from full Loop Quantum Gravity Dynamics

Autor:	Dapor, Andrea, Liegener, Klaus
Rok vydání:	2017
Předmět:	General Relativity and Quantum Cosmology High Energy Physics - Lattice High Energy Physics - Theory
Zdroj:	Phys.Lett.B 785 (2018)
Druh dokumentu:	Working Paper
DOI:	10.1016/j.physletb.2018.09.005
Popis:	The concept of effective dynamics has proven successful in LQC, a loop-inspired quantization of cosmological spacetimes. We apply the same idea of its derivation in LQC to the full theory, by computing the expectation value of the scalar constraint with respect to some coherent states peaked on the phase-space variables of flat Robertson-Walker spacetime. We comment on the relation with effective LQC and find a deviation stemming from the Lorentzian part of the Hamiltonian. Comment: 5 pages, 1 figure. Accepted version in PLB
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1706.09833 Zobrazit plný text záznamu View this record from Arxiv