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Cited by 930

The DOI matches its Crossref record; 50 of the 50 references it cites were found in a registry or an index.

Cosmic structure as the quantum interference of a coherent dark wave

Open access
Schive, Hsi-Yu, Chiueh, Tzihong, Broadhurst, Tom·2014·Nature Physics
DOI 10.1038/nphys2996
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Abstract

A cosmological model treating dark matter as a coherent quantum wave agrees well with conventional dark-matter theory on an astronomical scale. But on smaller scales, the quantum nature of wave-like dark matter can explain dark-matter cores that are observed in dwarf galaxies, which standard theory cannot. The conventional cold-particle interpretation of dark matter (known as ‘cold dark matter’, or CDM) still lacks laboratory support and struggles with the basic properties of common dwarf galaxies, which have surprisingly uniform central masses and shallow density profiles1,2,3,4,5. In contrast, galaxies predicted by CDM extend to much lower masses, with steeper, singular profiles6,7,8,9. This tension motivates cold, wavelike dark matter (ψDM) composed of a non-relativistic Bose–Einstein condensate, so the uncertainty principle counters gravity below a Jeans scale10,11,12. Here we achieve cosmological simulations of this quantum state at unprecedentedly high resolution capable of resolving dwarf galaxies, with only one free parameter, mB, the boson mass. We demonstrate the large-scale structure is indistinguishable from CDM, as desired, but differs radically inside galaxies where quantum interference forms solitonic cores surrounded by extended haloes of fluctuating density granules. These results allow us to determine eV using stellar phase-space distributions in dwarf spheroidal galaxies. Denser, more massive solitons are predicted for Milky Way sized galaxies, providing a substantial seed to help explain early spheroid formation. The onset of galaxy formation is substantially delayed relative to CDM, appearing at redshift z ≲ 13 in our simulations.

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Metadata

Authors
Schive, H.-Y., Chiueh, T., & Broadhurst, T.
Venue
Nature Physics
Publisher
Springer Science and Business Media LLC
Published
2014-06-22
Volume
10
Issue
7
Pages
496-499
ISSN
  • 1745-2473 (ISSN-L)
  • 1745-2481
DOI
10.1038/nphys2996
OpenAlex
W2009463540
Cited by
930
References
50
FWCI
17.57
Type
journal article
Language
en
Open access
bronze

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