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DOE OSTI · 1851215

Oscillon preheating in full general relativity

Kou, Xiao-Xiao·Tian, Chi (ORCID:0000000258918573)·Zhou, Shuang-Yong (ORCID:0000000282922943)
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Abstract

Abstract Oscillons are dense nonperturbative objects that may be copiously produced in the preheating period after inflation. Oscillon preheatings are usually simulated with nonlinear matter interactions but in a rigid FLRW background, without taking into account the gravitational backreactions. We investigate the oscillon preheating scenario in full general relativity with a full numerical relativity scheme, and compare the general-relativistic simulations with the traditional ones done in an FLRW background. We find that in certain parameter regions the general-relativistic corrections are significant, producing more and denser oscillons, and can be strong enough to collapse the oscillons to black holes.

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Kou, Xiao-Xiao, Tian, Chi (ORCID:0000000258918573), Zhou, Shuang-Yong (ORCID:0000000282922943). 2020-12-24. Oscillon preheating in full general relativity. https://doi.org/10.1088/1361-6382%2Fabd09f

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