Probing dark energy through perfect fluid thermodynamics

Georgios Lukes-Gerakopoulos, Giovanni Acquaviva, Charalampos Markakis

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We demonstrate that the thermodynamics of a perfect fluid describing baryonic matter can, in certain limits, lead to an equation of state similar to that of dark energy. We keep the cosmic fluid equation of state quite general by just demanding that the speed of sound is positive and less than the speed of light. In this framework, we discuss some propositions by looking at the asymptotic behaviour of the cosmic fluid.

Original languageEnglish (US)
Title of host publicationProceedings of RAGtime 20-22
Subtitle of host publicationWorkshops on Black Holes and Neutron Stars
EditorsZdenek Stuchlik, Gabriel Torok, Vladimir Karas
PublisherSilesian University in Opava
Number of pages10
ISBN (Electronic)9788075104328
StatePublished - Dec 2020
EventRAGtime 20-22: Workshops on Black Holes and Neutron Stars - Opava, Czech Republic
Duration: Oct 19 2020Oct 23 2020

Publication series

NameProceedings of RAGtime
ISSN (Print)2336-5668
ISSN (Electronic)2336-5676


ConferenceRAGtime 20-22: Workshops on Black Holes and Neutron Stars
Country/TerritoryCzech Republic


  • Dark energy
  • Perfect fluid thermodynamics

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Astronomy and Astrophysics


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