Entropy production in the early-cosmology pionic phase

We point out that in the early universe, for temperatures in the approximate interval 175-80 MeV (after the quark-gluon plasma), pions carried a large share of the entropy and supported the largest inhomogeneities. Thus, we examine the production of entropy in a pion gas, particularizing to inhomogeneities of the temperature, for which we benefit from the known thermal conductivity. We finally put that entropy produced in relaxing such thermal inhomogeneities in the broad context of this relatively unexplored phase of early-universe cosmology.

• Publication year

  2015

• Venue

  arXiv: Nuclear Theory

• Publication date

  2015-07-23

• Fields of study

  Physics

• Identifiers
  DOI 10.1142/S0217751X16501189arXiv 1507.06386
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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