2 papers
gr-qc2020
Cosmological constraints on dark matter particle production rate
Z. Safari, B. Malekolkalami, H. Moshafi
Gravitational particle production has been investigated by using Einstein's gravitational field equations in the presence of a cosmological constant. To study the mechanism of part…
gr-qc2017
Quartic time-dependent oscillatons
A. Mahmoodzadeh, B. Malekolkalami
In this paper, we will study some properties of oscillaton, spherically symmetric object made of a real time-dependent scalar field, Using a self- interaction quartic scalar potent…