IPM Positions

Ph.D. Student, School of Astronomy (2014 - 2018 )

Research Interests

Early universe Cosmology- High Energy Physics ? Inflation ? Large Scale Structure Formation

Research Activities

My main era of interest in Cosmology is early universe, much earlier than the time of forming any structure in the cosmos including Galaxies, Stars etc. Physics here is highly simple in the sense that many phenomena in early stages of our universe could be described by analytic solutions. I have focused on Inflation and CMB so far. Especially I dedicated my first projects on some models of early universe that can predict the Dipole anomaly of the Cosmic Microwave Background detected by Planck?s mission. Also we have partially worked on cosmological perturbation theory, Effective field theory on inflation etc. Recently we got some interest in Baryogenesis issue, one of the main puzzling questions in Cosmology. Specifically we are looking for scenarios of baryogenesis which has some roots inside the first stage of our universe; Inflation.

Present Research Project at IPM

Baryogenesis During Inflation

Related Papers

1.	E. Pajer and S. Jazayeri Systematics of adiabatic modes: flat universes JCAP 2018 (2018),   [abstract] Code: IPM/A-2017/39

2.	H. Firouzjahi, S. Jazayeri, A. Karami and T. Rostami Bubble nucleation and inflationary perturbations JCAP 2017 (2017),   [abstract] Code: IPM/A-2017/34

3.	S. Jazayeri, A. Vafaei Sadr and H. Firouzjahi Primordial anisotropies from cosmic strings during inflation Phys. Rev. D 96 (2017),   [abstract] Code: IPM/A-2017/27

4.	S. Jazayeri, A. Vafaei Sadr and H. Firouzjahi Primordial anisotropies from cosmic strings during inflation Phys. Rev. D (Submitted) [abstract] Code: IPM/A-2017/06

5.	S. Jazayeri, Sh. Mukohyama, R. Saitou and Y. Watanabe Ghost inflation and de Sitter entropy JCAP (Submitted) [abstract] Code: IPM/A-2016/14

6.	M. Akhshik, H. Firouzjahi and S. Jazayeri Cosmological Perturbations and the Weinberg Theorem JCAP 2015 (2015),   [abstract] Code: IPM/A-2015/23