Statistical Cosmological Fermion Systems With Interparticle Fantom Scalar Interaction

TL;DR

This paper investigates the cosmological evolution of fermion systems with a negative kinetic scalar interaction, revealing four possible evolution scenarios including inflation, through analytical and numerical methods.

Contribution

It introduces a model of fermion systems with fantom scalar interaction and explores their diverse cosmological evolution scenarios.

Findings

Four distinct evolution scenarios identified

Presence of inflation stage in all scenarios

Different non-relativistic stages depending on parameters

Abstract

The article represents a research of the cosmological evolution of fermion statistical systems with fantom scalar interaction where "kinetic" term's contribution to the total energy of a scalar field is negative. As a result of analytical and numerical simulation of such systems it has been revealed a existence of four possible scenarios depending on parameters of the system and initial conditions. Among these scenarios there are scenarios with an early, intermediate and late non-relativistic stages of the cosmological evolution, all of which also have necessary inflation stage.