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arXiv · 2306.12961

Quantum decay of scalar and vector boson stars and oscillons into gravitons

Kazunori Nakayama·Fuminobu Takahashi·Masaki Yamada
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Abstract

We point out that a soliton such as an oscillon or boson star inevitably decays into gravitons through gravitational interactions. These decay processes exist even if there are no apparent self-interactions of the constituent field, scalar or vector, since they are induced by gravitational interactions. Hence, our results provide a strict upper limit on the lifetime of oscillons and boson stars including the dilute axion star. We also calculate the spectrum of the graviton background from decay of solitons.

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Kazunori Nakayama, Fuminobu Takahashi, Masaki Yamada. 2023-06-22. Quantum decay of scalar and vector boson stars and oscillons into gravitons. https://arxiv.org/abs/2306.12961

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