Hamiltonian formalism and gauge-fixing conditions for cosmological perturbation theory
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DOI: 10.1088/1361-6382/ab45aa
Abstract: We apply the Dirac procedure for constrained systems to the Arnowitt-Deser-Misner formalism linearized around the Friedmann-Lemaitre universe. We explain and employ some basic concepts such as Dirac observables, Dirac brackets, gauge-fixing conditions, reduced phase space,… read more here.
Keywords: reduced phase; fixing conditions; phase space; formalism ... See more keywords