We explore the effects of considering various infrared (IR) cutoffs, including particle horizon, Ricci horizon and Granda-Oliveros (GO) on properties Tsallis holographic dark energy (THDE) model, proposed inspired by generalized entropy formalism \cite{THDE}. Interestingly enough, we find that for as IR cutoff, obtained THDE model can describe accelerated universe. This is in contrast to usual HDE which cannot lead an universe, if one consider cutoff. also investigate cosmological...

Using the nonextensive Tsallis entropy and holographic hypothesis, we propose a new dark energy (DE) model with time scale as infrared (IR) cutoff. Considering age of Universe well conformal IR cutoffs, investigate cosmological consequences proposed DE models study evolution filled by pressureless matter obtained candidates. We find that although these can describe late acceleration density, deceleration equation state parameters show satisfactory behavior themselves, however, are...

A spatially homogeneous and anisotropic Bianchi type I universe is considered while it filled by pressureless dark matter (DM) Tsallis holographic energy (DE) interacting with each other throughout a sign-changeable mutual interaction. Various infra-red (IR) cutoffs are studied, has been obtained that the current can classically be stable for some cases, all models display classical instability themselves at future ($z\rightarrow-1$). Moreover, we find out cross phantom line. In order to...

We use three IR cutoffs, including the future event horizon, Hubble and Granda-Oliveros (GO) to construct holographic models of dark energy. Additionally, we consider a Friedmann-Robertson-Walker (FRW) universe filled by matter (DM) energy that interact with each other through mutual sign-changeable interaction. Thereinafter, address evolution some cosmological parameters, such as equation state dimensionless density parameters well deceleration parameter, during cosmic from dominated era...

We consider the Brans–Dicke (BD) theory of gravity and explore cosmological implications sign-changeable interacting holographic dark energy (HDE) model in background a Friedmann–Robertson–Walker (FRW) universe. As system’s infrared cutoff, we choose future event horizon, Granda–Oliveros (GO), Ricci cutoffs. For each obtain density parameter, equation state (EoS), deceleration parameter system. In case find out that EoS w D , can cross phantom line; as result transition from to acceleration...

We investigate the new Tsallis agegraphic dark energy (NTADE) scenario in framework of Horava-Lifshitz cosmology. Considering interacting and non-interacting scenarios NTADE with matter a spatially non-flat universe, we cosmological implications this model detail. obtain differential equation evolution density parameter, state parameter classical stability model. Also, study behavior deceleration nature statefinder diagnostics $ω_D-{ω_D}^{\prime}$ plane. find that phantom crossing cannot...

We investigate the ghost model of dark energy in framework DGP braneworld. explore cosmological consequences this by determining equation state parameter, <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mrow><mml:msub><mml:mrow><mml:mi>ω</mml:mi></mml:mrow><mml:mrow><mml:mi>D</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>, deceleration, and density parameters. also examine stability studying squared sound speed presence/absence interaction term between matter....

We explore a spatially homogeneous and isotropic Friedmann–Robertson–Walker (FRW) universe that is filled with agegraphic dark energy (ADE) mutual interaction pressureless matter in the background of Brans–Dicke (BD) theory. consider both original new type ADE (NADE) further assume sign term can change during history universe. obtain equation state parameter, deceleration evolutionary for sign-changeable interacting NADE BD cosmology. find models, w D , cannot cross phantom line, although...

We investigate the ghost model of dark energy in framework DGP braneworld. explore cosmological consequences this by determining equation state parameter, $\omega_D$, deceleration and density parameters. also examine stability studying squared sound speed presence/absence interaction term between matter. find out that absence two sectors Universe we have $\omega_D\rightarrow -1$ late time, while presence $\omega_D$ can cross phantom line $-1$. In both cases $v_s^2$ does not show any signal...