Yukawa-Screened Bose-Star Condensation

Jiajun Chen

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arXiv · 2605.23206

Yukawa-Screened Bose-Star Condensation

Jiajun Chen

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Abstract

We study Bose-star formation in a Yukawa-Schr\"odinger-Poisson (YSP) system. A finite interaction range suppresses the infrared kinetic relaxation responsible for Bose-star condensation, modifying both the equilibrium Bose-star structure and the condensation timescale. We derive a screened kinetic condensation formula in which the ordinary gravitational Coulomb logarithm is replaced by a finite Yukawa transport logarithm. Static YSP solutions show that Yukawa screening broadens the Bose-star density profile relative to the ordinary Newtonian soliton. Fully dynamical pseudospectral simulations with homogeneous and isotropic initial conditions demonstrate that Yukawa screening systematically delays Bose-star condensation, in good agreement with the screened kinetic prediction after fitting a single overall normalization parameter.

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Jiajun Chen. 2026-05-22. Yukawa-Screened Bose-Star Condensation. https://arxiv.org/abs/2605.23206

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