Phenomenological Fluids from Interacting Tachyonic Scalar Fields

Abstract

In this paper we are interested to consider mathematical ways to obtain different phenomenological fluids from two-component Tachyonic scalar fields. We consider interaction between components and investigate problem numerically. Statefinder diagnostics and validity of the generalized second law of thermodynamics performed and checked. We suppose that our Universe bounded by Hubble horizon.

Stability and interacting f(T, T ) gravity with modified Chaplygin gas

“…1 and 2 show us that free parameters of the modified Chaplygin gas (A and B) and the interacting term (b) play a very important role to confirm the accelerated expansion of the universe (the obtained results are consistent with [50,51]). …”

“…In order to describe dark energy model, numerous studies have been performed in isotropic space-time such as scalar fields (quintessence, phantom, tachyon and etc.) [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23], modified gravity models [24][25][26][27][28][29][30][31], holographic models [32][33][34][35][36][37][38][39][40], interacting models [41][42][43][44][45][46][47][48][49][50][51][52], bouncing model [53][54][55...…”

An effective quintessence field with a power-law potential

“…which captured a lot of attention (see, for instance, references in [11], [12] and [13]). The stress energy tensor,…”

Quintessence Cosmology with an Effective Λ -Term in Lyra Manifold

“…One of the ways to solve the cosmological coincidence problem is to consider the interaction between the components on phenomenological level. Also by consideration of interaction between dark matter and dark energy we can construct a real model of universe [32][33][34][35]. This paper is organized as the follows.…”