2 papers
astro-ph.CO2025
Unifying Cosmic Epochs and Effective Dynamical Brane Tension
Farzin Safarzadeh-Maleki
We present a single analytic scale factor \(a(t)=e^{H(t)t}\bigl(1-e^{-k(t)t}\bigr)^{b(t)}\) that unifies the cosmic expansion history from inflation to the present in a smooth and…
hep-th2019
Investigation of Zero-Modes for a Dynamical D-Brane
Farzin Safarzadeh-Maleki
In this article, we investigate zero-modes for a dynamical (rotating-moving) D-brane, coupled to the electromagnetic and tachyonic background fields. This work is done by the bo…