3 papers
physics.class-ph2025
The nonlinearity of helical springs: An energy-based approach
SaÅ¡a IlijiÄ, Ana BabiÄ, Dora IvrlaÄ +1
A general expression for the elastic potential energy of a helical spring is derived using the basic concepts of elasticity theory and geometry. Both the translational and the rota…
gr-qc2025
An analysis of Born-Infeld boson compact objects
Andrew DeBenedictis, Sasa Ilijic
In this paper we study gravitationally bound compact objects sourced by a string theory inspired Born-Infeld scalar field. Unlike many of their canonical scalar field counterparts,…
gr-qc2024
On a Class of Exact Arbitrarily Differentiable de Sitter Cores with Kerr Exteriors: Possible gravastar or regular black hole mimickers
Sasa Ilijic, Andrew DeBenedictis
Within the paradigm of non-perturbative Einstein gravity we study continuous curvature manifolds which possess de Sitter interiors and Kerr exteriors. These manifolds could represe…