Fermi ball: Difference between revisions
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In [[cosmology]], '''Fermi balls''' are hypothetical objects that may have been created in the early history of the universe by [[spontaneous symmetry breaking]]. One paper has described them as "charged [[SLAC bag|SLAC-bag]] type structures".<ref>{{cite arXiv|eprint= hep-ph/9412264|last1= Macpherson|first1= Alick L.|title= Fermi Ball Detection|last2= Pinfold|first2= James L.|date= 1994}}</ref> |
In [[cosmology]], '''Fermi balls''' are hypothetical objects that may have been created in the early history of the universe by [[spontaneous symmetry breaking]]. One paper has described them as "charged [[SLAC bag|SLAC-bag]] type structures".<ref>{{cite arXiv|eprint= hep-ph/9412264|last1= Macpherson|first1= Alick L.|title= Fermi Ball Detection|last2= Pinfold|first2= James L.|date= 1994}}</ref> Fermi balls can be modeled as a type of [[non-topological soliton]]. |
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The concept is named after [[Enrico Fermi]] (see [[Fermion]]). |
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== Hypothesized explanations for observed phenomena == |
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=== Dark matter === |
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A paper by theoretical physicists at Seoul National University has proposed that Fermi balls may be implicated in the formation of [[primordial black hole]]s from a cosmic [[first-order phase transition]], as a candidate explanation for [[dark matter]].<ref>{{cite arXiv|eprint=2106.00111|last1=Kawana|first1=Kiyoharu|last2=Xie|first2=Ke-Pan|title=Primordial black holes from a cosmic phase transition: The collapse of Fermi-balls|date=2021-05-31}}</ref> |
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== References == |
== References == |
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[[Category:Physical cosmology]] |
[[Category:Physical cosmology]] |
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[[Category:Hypothetical objects]] |
[[Category:Hypothetical astronomical objects]] |
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Revision as of 15:14, 9 September 2021
In cosmology, Fermi balls are hypothetical objects that may have been created in the early history of the universe by spontaneous symmetry breaking. One paper has described them as "charged SLAC-bag type structures".[1] Fermi balls can be modeled as a type of non-topological soliton.
The concept is named after Enrico Fermi (see Fermion).
Hypothesized explanations for observed phenomena
Dark matter
A paper by theoretical physicists at Seoul National University has proposed that Fermi balls may be implicated in the formation of primordial black holes from a cosmic first-order phase transition, as a candidate explanation for dark matter.[2]
References
- ^ Macpherson, Alick L.; Pinfold, James L. (1994). "Fermi Ball Detection". arXiv:hep-ph/9412264.
- ^ Kawana, Kiyoharu; Xie, Ke-Pan (2021-05-31). "Primordial black holes from a cosmic phase transition: The collapse of Fermi-balls". arXiv:2106.00111.
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