Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Pathak, S. D."'
In this paper, we calculate the relativistic corrections to the Zeeman effect for hydrogen-like atoms based on the Generalized Uncertainty Principle (GUP). We propose a relativistic GUP algebra using the Stetsko and Tkachuk approximation and incorpor
Externí odkaz:
http://arxiv.org/abs/2410.11965
In this paper we explore the effects of a Generalized Uncertainty Principle (GUP) on Schwarzschild black hole. In particular, we incorporate the effects of GUP into the Parikh-Wilczek tunneling process for Hawking radiation. To this effect, we observ
Externí odkaz:
http://arxiv.org/abs/2407.19268
In this paper, we investigate the behaviour of a minimally coupled tachyonic scalar field at inflection points in an accelerating universe. We consider the different expansion factors and obtain potentials of tachyonic scalar field. Inflection points
Externí odkaz:
http://arxiv.org/abs/2406.01560
In this paper, we invoke a generalized uncertainty principle (GUP) in the symmetry-reduced cosmological Hamiltonian for a universe driven by a quintessence scalar field with potential. Our study focuses on semi-classical regime. In particular, we der
Externí odkaz:
http://arxiv.org/abs/2405.08680
Quantum gravity has been baffling the theoretical physicist for decades now: both for its mathematical obscurity and phenomenological testing. Nevertheless, the new era of precision cosmology presents a promising avenue to test the effects of quantum
Externí odkaz:
http://arxiv.org/abs/2404.09049
Autor:
Joshi, Tanisha, Pathak, S. D
We proposed a generalized Lagrangian for three different classes of scalar fields namely quintessence($\alpha =-1$), phantom($\alpha =0$), and tachyonic ($\alpha =1$) parameterized by $\alpha$. These three scalar fields can be described by a common s
Externí odkaz:
http://arxiv.org/abs/2312.12079
Autor:
Joshi, Tanisha, Pathak, S. D
This study explores the plausibility of an interacting tachyonic scalar, homogeneous in nature, as a promising candidate for dynamic dark energy, offering insights into the observed accelerated expansion of the universe. The parameterization of the i
Externí odkaz:
http://arxiv.org/abs/2308.05491
Autor:
Joshi, Tanisha, Pathak, S. D
Understanding the evolution of entropy in the universe is a fundamental aspect of cosmology. This paper investigates the evolution of entropy in a spatially flat $K=0$ universe, focusing on the contributions of matter, radiation, and dark energy comp
Externí odkaz:
http://arxiv.org/abs/2308.05025
The existence of dark energy is essential to explain the cosmic accelerated expansion. We consider a homogenous interacting tachyonic scalar field as a possible candidate for the dynamical dark energy. The interaction between the tachyonic field and
Externí odkaz:
http://arxiv.org/abs/2305.00277
Publikováno v:
Commun. Theor. Phys. 73 025402(2021)
We discuss the coupling between dark energy and matter by considering a homogeneous tachyonic scalar field as a candidate for dark energy. We obtained the functional form of scale factor by assuming that the coupling strength depends linearly on the
Externí odkaz:
http://arxiv.org/abs/2006.14928