Universality and Criticality in Mass-less Scalar Field Collapse
General Relativity and Quantum Cosmology
2025-12-25 v1
Abstract
In this paper, we observe the collapse of a mass-less scalar field covariantly. We show that the strengths of the collapsing and dispersing modes of this scalar field will decide whether the collapse will end up in a black-hole or disperse. We find a locally naked null singularity as a critical case between these two and confirm that there is a single dimensionless parameter that determine the end state. This work is ansatz-independent, hence, true for all mass-less scalar field families. We also show that the geometrical mass of these singularities go to zero.
Keywords
Cite
@article{arxiv.2512.20998,
title = {Universality and Criticality in Mass-less Scalar Field Collapse},
author = {Koushiki and Rituparno Goswami and Pankaj S. Joshi},
journal= {arXiv preprint arXiv:2512.20998},
year = {2025}
}