Science China Physics, Mechanics and Astronomy

, Volume 56, Issue 6, pp 1220–1226

Constraining the lattice fluid dark energy from SNe Ia, BAO and OHD



Sanchez and Lacombe have developed a lattice fluid theory based on a well-defined statistical mechanical model. Taking the lattice fluid as a candidate of dark energy, we investigate the cosmic evolution of this fluid. Using the combined observational data of Type Ia Supernova (SNe Ia) Union2.1, Baryon Acoustic Oscillations (BAO) data from 6dFGS, SDSS and WiggleZ survey, and Observational Hubble Data (OHD), we find the best fit value of the parameters: A = −0.3 ± 0.2(1σ) ± 0.4(2σ) ± 0.8(3σ) and Ωm = 0.31 ± 0.02(1σ) ± 0.05(2σ) ± 0.07(3σ). The cosmological implications of the model are presented.


dark energy lattice fluid statefinder 


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Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.National Astronomical ObservatoriesChinese Academy of SciencesBeijingChina
  2. 2.Graduate University of Chinese Academy of SciencesBeijingChina
  3. 3.Kavli Institute for Theoretical Physics ChinaChinese Academy of SciencesBeijingChina

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