Tsallis holographic dark energy

By M. Tavayef, Ahmad Sheykhi, Kazuharu Bamba, Hooman Moradpour. Physics Letters B, 2018

312 citations recorded by the source corpus.

Abstract Employing the modified entropy–area relation suggested by Tsallis and Cirto [1] , and the holographic hypothesis, a new holographic dark energy (HDE) model is proposed. Considering a flat Friedmann–Robertson–Walker (FRW) universe in which there is no interaction between the cosmos sectors, the cosmic implications of the proposed HDE are investigated. Interestingly enough, we find that the identification of IR-cutoff with the Hubble radius, can lead to the late time accelerated Universe even in the absence of interaction between two dark sectors of the Universe. This is in contrast to the standard HDE model with Hubble cutoff, which does not imply the accelerated expansion, unless the interaction is taken into account.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/24f808b76d0875af0f5300adbdb72a7d58328b58

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Citations in the corpus

Holographic dark energy through Tsallis entropy (2018, background): “Although a similar idea appeared in a recent work too [59], its cosmological application had the serious disadvantage that it did not possess standard entropy and standard holographic dark energy as a sub-case, due to the fact that it was the Hubble horizon that was used as the IR cutoff, which is w”