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Oscillon preheating in full general relativity
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DOI：10.1088/1361-6382/abd09f.png)
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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.
Keyword:
numerical relativity
preheating
cosmology
期刊
IF:
3.7
论文数:
1.3W
被引数:
3.0W
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