Lumps and bumps in the early universe
APA
Amin, M. (2010). Lumps and bumps in the early universe. Perimeter Institute. https://pirsa.org/10110050
MLA
Amin, Mustafa. Lumps and bumps in the early universe. Perimeter Institute, Nov. 09, 2010, https://pirsa.org/10110050
BibTex
@misc{ pirsa_PIRSA:10110050, doi = {10.48660/10110050}, url = {https://pirsa.org/10110050}, author = {Amin, Mustafa}, keywords = {Cosmology}, language = {en}, title = {Lumps and bumps in the early universe}, publisher = {Perimeter Institute}, year = {2010}, month = {nov}, note = {PIRSA:10110050 see, \url{https://pirsa.org}} }
Massachusetts Institute of Technology (MIT)
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Abstract
I will discuss the emergence of large, localized, pseudo-stable configurations (oscillons) from inflaton fragmentation at the end of inflation. Remarkably, the emergent oscillons take up >50 per cent of the energy density of the inflaton. First, I will give an overview of oscillons, provide some analytic solutions and discuss their stability. Then, I will discuss the conditions necessary for their emergence and provide estimates for their cosmological number density. I will show results from detailed 3+1-dimensional numerical simulations and compare them to the analytic estimates. Finally, I discuss possible observational consequences of oscillons in the early universe.