A new mechanism for dark energy: the adaptive screening
arXiv:1407.0389 · doi:10.1007/JHEP01(2015)101
Abstract
We describe how known matter effects within a well-motivated particle physics framework can explain the dark energy component of the Universe. By considering a cold gas of particles which interact via a vector mediator, we show that there exists a regime where the gas reproduces the dynamics of dark energy. In this regime the screening mass of the mediator is proportional to the number density of the gas, hence we refer to this phenomenon as "the adaptive screening mechanism". As an example, we argue that such screening mass can result from strong localization of the vector mediators. The proposed dark energy mechanism could be experimentally verified through cosmological observations by the Euclid experiment, as well as by studying properties of dark photons and sterile neutrinos.
arXiv commentAccepted for publication in JHEP. 8 pages, 2 figures
References in corpus (20)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- Measurements of Omega and Lambda from 42 High-Redshift Supernovae
- Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
- Planck 2013 results. XVI. Cosmological parameters
- The Supernova Legacy Survey: Measurement of Omega_M, Omega_Lambda and w from the First Year Data Set
- Planck 2013 results. I. Overview of products and scientific results
- Cosmology and fundamental physics with the Euclid satellite
- Constraints on Cosmological Models from Hubble Space Telescope Observations of High-z Supernovae
- Localization of ultrasound in a three-dimensional elastic network
- Statistical Signatures of Photon Localization
- Observation of the critical regime near Anderson localization of light
- Hubble parameter measurement constraints on the cosmological deceleration-acceleration transition redshift
- A correlation of the cosmic microwave sky with large scale structure
- Detection of the ISW and SZ effects from the CMB-Galaxy correlation
- The Wilkinson Microwave Anisotropy Probe (WMAP) Source Catalog
- Primordial Neutrinos
- The strongest bounds on active-sterile neutrino mixing after Planck data
- Constraints on very light sterile neutrinos from -sensitive reactor experiments
- Constraining Super-light Sterile Neutrino Scenario by JUNO and RENO-50
- Multiscaling Anderson localization of cosmic electromagnetic fields