Quark-hadron phase transition of the early Universe in the nontopological soliton model

K. W. Ng, Wah-Keung Sze

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Based on the nontopological soliton model, we discuss the quark-hadron phase transition of the early Universe in the hot big-bang model. We extract the parameter spaces which are relevant for small supercooling of the phase transition and the inhomogeneous nucleosynthesis. In particular, we explore the possibility that the early Universe is a cold universe filled with very dense and degenerate baryons. This cold universe is then reheated by the latent heat released from the quarkhadron phase transition. Without fine-tuning any parameter in the soliton model, we find that a typical potential in the model would dilute the dense baryons to an acceptable baryon asymmetry of the Universe. We also discuss the generation of density fluctuations during the phase transition in the cold universe.

Original languageEnglish
Pages (from-to)3813-3820
Number of pages8
JournalPhysical Review D
Volume43
Issue number12
DOIs
Publication statusPublished - 1991 Jan 1

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universe
solitary waves
quarks
baryons
latent heat
supercooling
nuclear fusion
tuning
asymmetry

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Quark-hadron phase transition of the early Universe in the nontopological soliton model. / Ng, K. W.; Sze, Wah-Keung.

In: Physical Review D, Vol. 43, No. 12, 01.01.1991, p. 3813-3820.

Research output: Contribution to journalArticle

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