36 citations · 60 across the 8 of their papers we have counts for
8 papers
A multifield tachyon quintom model of dark energy and fate of the universe
Muhammad Zahid Mughal, Iftikhar Ahmad
We investigate a multi-field model of dark energy in this paper. We develop a model of dark energy with two multiple scalar fields, one we consider, is a multifield tachyon and the…
Energy Constraints and Phenomenon of Cosmic Evolution in Framework
M. Zubair, Saira Waheed, M. Atif Fayyaz +1
We investigate the cosmological evolution in a new modified teleparallel theory, called gravity, which is formulated by connecting both and theories with a b…
Effects of Multi-Field Phantom Inflation in Big Rip
Iftikhar Ahmad, Farah Naz, Zaffar Iqbal
In this paper we study the behavior of the multi-field in phantom inflation, when massive scalar fields work collectively, in which the scale factor is a power law. We evaluate its…
Static Solutions of Einstein's Equations with Spherical Symmetry
Iftikhar Ahmad, Maqsoom Fatima, Najam-ul-Basat
The Schwarzschild solution is a complete solution of Einstein's field equations for a static spherically symmetric field. The Einstein's field equations solutions appear in the lit…
Observational Constraints on Nfields Phantom Power-Law
Iftikhar Ahmad
We investigate the analytical behavior of many scalar fields working collectively, where ϕ i is the ith scalar field. Furthermore, we evaluate its parameter values by applying cert…
Phase Diagram for Nflation
Iftikhar Ahmad, Yun-Song Piao, Cong-Feng Qiao
Recently, it was showed that there is a large N phase transition in Nflation, in which when the number of fields is large enough, the slow roll inflation phase will disappear. In t…