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arXiv · 2405.06591

Perturbations of Q-balls: from spectral structure to radiation pressure

Dominik Ciurla·Patrick Dorey·Tomasz Romańczukiewicz·Yakov Shnir
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Abstract

We investigate Q-balls in a 1+1 dimensional complex scalar field theory. We find that the relaxation of a squashed Q-ball is dominated by the decay of a normal mode through nonlinear coupling to scattering modes and a long-lasting quasi-normal mode. We also study how these Q-balls behave when exposed to scalar radiation, finding that for certain conditions they can experience negative radiation pressure.

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Dominik Ciurla, Patrick Dorey, Tomasz Romańczukiewicz, Yakov Shnir. 2024-05-10. Perturbations of Q-balls: from spectral structure to radiation pressure. https://doi.org/10.1007/jhep07(2024)196

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