TL;DR
This paper investigates the properties, stability, and analytical solutions of q-stars with various fields in 2+1 dimensions within anti de Sitter or flat spacetime, combining numerical and analytical methods.
Contribution
It provides a comprehensive analysis of q-stars in 2+1 dimensions, including stability criteria and analytical solutions for special cases, expanding understanding of these objects in lower-dimensional spacetimes.
Findings
Numerical characterization of mass, particle number, and radius of q-stars.
Stability analysis against decay and gravitational collapse.
Analytical solutions for flat spacetime cases.
Abstract
We study q-stars with one or two scalar fields, non-abelian, and fermion-scalar q-stars in 2+1 dimensions in an anti de Sitter or flat spacetime. We fully investigate their properties, such as mass, particle number, radius, numerically, and focus on the matter of their stability against decay to free particles and gravitational collapse. We also provide analytical solutions in the case of flat spacetime and other special cases.
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