On pole-skipping with gauge-invariant variables in holographic axion theories
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DOI: 10.1007/jhep06(2024)020
Abstract: We study the pole-skipping phenomenon within holographic axion theories, a common framework for studying strongly coupled systems with chemical potential (μ) and momentum relaxation (β). Considering the backreaction characterized by μ and β, we encounter… read more here.
Keywords: invariant variables; axion theories; axion; pole skipping ... See more keywords
Gauge invariant variables for cosmological perturbation theory using geometrical clocks
Sign Up to like & getrecommendations! Published in 2018 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/aacda2
Abstract: Using the extended ADM-phase space formulation in the canonical framework we analyze the relationship between various gauge choices made in cosmological perturbation theory and the choice of geometrical clocks in the relational formalism. We show… read more here.
Keywords: gauge; invariant variables; perturbation theory; gauge invariant ... See more keywords