Dark Matter Superfluidity

@article{Khoury2016DarkMS,
  title={Dark Matter Superfluidity},
  author={Justin Khoury},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
  year={2016}
}
  • J. Khoury
  • Published 26 May 2016
  • Physics
  • arXiv: Cosmology and Nongalactic Astrophysics
In this talk I summarize a novel framework that unifies the stunning success of MOND on galactic scales with the triumph of the $\Lambda$CDM model on cosmological scales. This is achieved through the rich and well-studied physics of superfluidity. The dark matter and MOND components have a common origin, representing different phases of a single underlying substance. In galaxies, dark matter thermalizes and condenses to form a superfluid phase. The superfluid phonons couple to baryonic matter… Expand

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References

SHOWING 1-10 OF 124 REFERENCES
A Dark Matter Superfluid
In this talk we present a novel framework that unifies the stunning success of MOND on galactic scales with the triumph of the LambdaCDM model on cosmological scales. This is achieved through theExpand
Theory of dark matter superfluidity
We propose a novel theory of dark matter (DM) superfluidity that matches the successes of the Λ cold dark matter (ΛCDM) model on cosmological scales while simultaneously reproducing the modifiedExpand
Dark matter superfluidity and galactic dynamics
Abstract We propose a unified framework that reconciles the stunning success of MOND on galactic scales with the triumph of the ΛCDM model on cosmological scales. This is achieved through the physicsExpand
Phenomenological consequences of superfluid dark matter with baryon-phonon coupling
Recently, a new form of dark matter has been suggested to naturally reproduce the empirically successful aspects of Milgrom's law in galaxies. The dark matter particle candidates are axion-like, withExpand
Galaxy Clusters in the Context of Superfluid Dark Matter
It has recently been proposed, by assuming that dark matter is a superfluid, that MOND-like effects can be achieved on small scales whilst preserving the success of $\Lambda$CDM on large scales. HereExpand
Another path for the emergence of modified galactic dynamics from dark matter superfluidity
In recent work we proposed a novel theory of dark matter (DM) superfluidity that matches the successes of the LambdaCDM model on cosmological scales while simultaneously reproducing MOdifiedExpand
The equation of state of dark matter superfluids
We derive the finite-temperature equation of state of dark matter superfluids with 2-body and 3-body contact interactions. The latter case is relevant to a recently proposed model of dark matterExpand
Reconciling MOND and dark matter
Observations of galaxies suggest a one-to-one analytic relation between the inferred gravity of dark matter at any radius and the enclosed baryonic mass, a relation summarized by Milgrom's law ofExpand
Small-Scale Challenges to the ΛCDM Paradigm
The dark energy plus cold dark matter (ΛCDM) cosmological model has been a demonstrably successful framework for predicting and explaining the large-scale structure of the Universe and its evolutionExpand
Ultralight scalars as cosmological dark matter
Many aspects of the large-scale structure of the Universe can be described successfully using cosmological models in which 27±1% of the critical mass-energy density consists of cold dark matterExpand
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