"Modern cosmology assumes that at that time the Universe was dominated by a particle known as the inflaton and its associated field.
The inflaton underwent intensive fluctuations, which had special properties.
They formed clumps, for example, causing them to oscillate in localized regions of space.
These regions are referred to as oscillons and can be imagined as standing waves".
and: "Gravitational waves from oscillons after inflation" by Stefan Antusch et al.
In Quantum FFF Theory however, these Inflatons and Oscilons can be compared with the Big Bang Black Hole splinters and the evaporated oscillating Axion Higgs field.
see: "The Splitting Dark Matter- Black Hole- Big Bang and the Cyclic Multiverse"
and for: Non Hawking Black Holes: http://vixra.org/pdf/1503.0186v5.pdf