Phase transitions of boson stars in scalar-tensor theories

Fuente: arXiv
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Main Authors: Huang, Hyat, Kleihaus, Burkhard, Kunz, Jutta, Lai, Meng-Yun, Radu, Eugen, Zou, De-Cheng
Format: Preprint
Published: 2025
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author Huang, Hyat
Kleihaus, Burkhard
Kunz, Jutta
Lai, Meng-Yun
Radu, Eugen
Zou, De-Cheng
author_facet Huang, Hyat
Kleihaus, Burkhard
Kunz, Jutta
Lai, Meng-Yun
Radu, Eugen
Zou, De-Cheng
contents In scalar-tensor theories, compact objects may experience spontaneous scalarization. Recently, it was shown that matter-induced spontaneous scalarization of neutron stars is predominantly associated with a first-order phase transition. Here we consider matter-induced spontaneous scalarization of boson stars. Employing a repulsive quartic potential for the bosonic matter, we find only first-order phase transitions.
format Preprint
id arxiv_https___arxiv_org_abs_2509_05202
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Phase transitions of boson stars in scalar-tensor theories
Huang, Hyat
Kleihaus, Burkhard
Kunz, Jutta
Lai, Meng-Yun
Radu, Eugen
Zou, De-Cheng
General Relativity and Quantum Cosmology
In scalar-tensor theories, compact objects may experience spontaneous scalarization. Recently, it was shown that matter-induced spontaneous scalarization of neutron stars is predominantly associated with a first-order phase transition. Here we consider matter-induced spontaneous scalarization of boson stars. Employing a repulsive quartic potential for the bosonic matter, we find only first-order phase transitions.
title Phase transitions of boson stars in scalar-tensor theories
topic General Relativity and Quantum Cosmology
url https://arxiv.org/abs/2509.05202