Evidence for pulsars metamorphism and their possible connection to black holes and dark matter in cosmology

TL;DR

This paper proposes that pulsars contain super-baryons made of incompressible gluon-quark superfluids, which could evolve into dark matter halos, linking pulsar metamorphism to black holes and dark matter in cosmology.

Contribution

It introduces a modified TOV equation with a scalar field to explain pulsar core composition and their potential evolution into dark matter structures.

Findings

Pulsars may host super-baryons formed by neutron mergers.

Super-baryons could evolve into dark matter halos over cosmic timescales.

Recent observations support the existence of such quantum stellar structures.

Abstract

Pulsars and neutron stars are generally more massive than the Sun, whereas black holes have unlimited mass-spectrum, though the mass-gap between 2 - 5$M_\odot$, which applies for both classes, is evident and remains puzzling. Based on the solution of the TOV equation modified to include a universal scalar field $\phi$ at the background of supranuclear densities, we claim that pulsars must be born with embryonic super-baryons (SBs), that form through the merger of individual neutrons at their centers. The cores of SBs are made of purely incompressible superconducting gluon-quark superfluids (henceforth SuSu-fluids). Such quantum fluids have a uniform supranuclear density and governed by the critical EOSs for baryonic matter $P_b = \mathcal{E}_b$ and for $\phi-$induced dark energy $P_\phi= -\mathcal{E}_\phi.$ The incompressibility here ensures that particles communicate on the shortest possible timescale, superfluidity and superconductivity enforce SBs to spin-down promptly as dictated by the Onsager-Feynman equation, whereas their lowest energy state grants SBs lifetimes that are comparable to those of protons. The extraordinary long lifetimes suggests that conglomeration of SuSu-objects would evolve over several big bang events to possibly form dark matter halos that embed the galaxies in the observable universe. Having pulsars been converted into SuSu-objects, which is predicted to last for one Gyr or even shorter, then they become extraordinary compact and turn invisible. It turns out that recent observations on the quantum, stellar and cosmological scales remarkably support the present scenario.