Published 2016
| Version v1
Journal article
Effective description of dark matter as a viscous fluid
- 1. Institut für Theoretische Physik, Universität Heidelberg, 69120 Heidelberg (Germany)
- 2. Theoretical Physics Department, CERN, CH-1211 Genève 23 (Switzerland)
- 3. Department of Physics, University of Athens, Zographou 157 84 (Greece)
Description
Treating dark matter at large scales as an effectively viscous fluid provides an improved framework for the calculation of the density and velocity power spectra compared to the standard assumption of an ideal pressureless fluid. We discuss how this framework can be made concrete through an appropriate coarse-graining procedure. We also review results that demonstrate that it improves the convergence of cosmological perturbation theory
Availability note (English)
Available from http://www.epj-conferences.org/articles/epjconf/pdf/2016/20/epjconf_quark2016_03018.pdf; https://doaj.org/article/72dc8cefb4324afcaa172a32c3d323c0; http://dx.doi.org/10.1051/epjconf/201612503018Additional details
Identifiers
Publishing Information
- Journal Title
- EPJ. Web of Conferences
- Journal Volume
- 125
- Journal Page Range
- 03018 p.
- ISSN
- 2100-014X
Conference
- Title
- 19. International Seminar on High Energy Physics
- Acronym
- QUARKS 2016
- Dates
- 29 May - 4 Jun 2016
- Place
- Pushkin (Russian Federation)
INIS
- Country of Publication
- France
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 48004741
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- COSMOLOGY; ENERGY SPECTRA; FLUIDS; IDEAL FLOW; NONLUMINOUS MATTER; PERTURBATION THEORY; VISCOUS FLOW
- Descriptors DEC
- FLUID FLOW; INCOMPRESSIBLE FLOW; MATTER; SPECTRA; STEADY FLOW
Optional Information
- Copyright
- Copyright (c) 2016 The Authors. Published by EDP Sciences