Field-theoretic approach to large-scale structure formation
arXiv:1909.10049 · doi:10.1103/PhysRevD.100.103527
Abstract
We develop a field-theoretic description of large-scale structure formation by taking the non-relativistic limit of a canonically transformed, real scalar field which is minimally coupled to scalar gravitational perturbations in longitudinal gauge. We integrate out the gravitational constraint fields and arrive at a non-local action which is only specified in terms of the dynamical degrees of freedom. In order to make this framework closer to the classical particle description, we construct the corresponding 2PI effective action truncated at two loop order for a non-squeezed state without field expectation values. We contrast the dynamical description of the coincident time phase-space density to the standard Vlasov description of cold dark matter particles and identify momentum and time scales at which linear perturbation theory will deviate from the standard evolution.
arXiv commentaccepted for publication in PRD
References in corpus (24)
- The Dynamics of General Relativity
- Axion Cosmology
- Large-Scale Structure of the Universe and Cosmological Perturbation Theory
- Cold and Fuzzy Dark Matter
- Ultralight scalars as cosmological dark matter
- Late time Cosmological Phase Transition and Galactic Halo as Bose-liquid
- Fluid Dark Matter
- Repulsive Dark Matter
- Galactic Halos As Boson Stars
- Strong Constraints on Fuzzy Dark Matter from Ultrafaint Dwarf Galaxy Eridanus II
- Boundary Terms, Variational Principles and Higher Derivative Modified Gravity
- The Einstein-Vlasov System/Kinetic Theory
- Schrödinger method as N-body double and UV completion of dust
- Relativistic Corrections to Nonrelativistic Effective Field Theories
- Non-linear hydrodynamics of axion dark matter: relative velocity effects and "quantum forces"
- How Cold is Cold Dark Matter?
- Semiclassical path to cosmic large-scale structure
- Path Integral Quantization of Cosmological Perturbations
- Gravitational collapse in the Schrödinger-Poisson system
- Finding closure: approximating Vlasov-Poisson using finitely generated cumulants
- Scalar field dark matter in hybrid approach
- Kinetic theory and classical limit for real scalar quantum field in curved space-time
- Resummed Kinetic Field Theory: Using Mesoscopic Particle Hydrodynamics to Describe Baryonic Matter in a Cosmological Framework
- BRST Quantization of Cosmological Perturbations
Cited by in corpus (4)
- Effective theories for a nonrelativistic field in an expanding universe: Induced self-interaction, pressure, sound speed, and viscosity
- Real scalar field, non-relativistic limit, and cosmological expansion
- Spatial correlations of dark energy from quantum fluctuations in inflation
- Fluctuating Dark Energy and the Luminosity Distance