Tachyon model of Tsallis holographic dark energy
, Munich, Bayern, Germany
Accepted: 17 May 2021
Published online: 26 May 2021
In this paper, we consider the correspondence between the tachyon dark energy model and the Tsallis holographic dark energy scenario in an FRW universe. We demonstrate the Tsallis holographic description of tachyon dark energy in an FRW universe and reconstruct the potential and basic results of the dynamics of the scalar field which describe the tachyon cosmology. In a flat universe, in the tachyon model of Tsallis holographic dark energy, independent of the existence of interaction between dark energy and matter or not, must always be zero. Therefore, the equation of state is always in such a flat universe. For a non-flat universe, cannot be zero so that which cannot be used to explain the origin of the cosmological constant. monotonically decreases with the increase in and for different s. In particular, for an open universe, is always larger than zero, while for a closed universe, is always smaller than zero which is physically invalid. In addition, we conclude that with the increase in and , always decreases monotonically irrespective of the value of .
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021