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Expansion of the Early Universe: A Numerical Simulation of Chern-Simons Inflation

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Title: Expansion of the Early Universe: A Numerical Simulation of Chern-Simons Inflation
Author: Preston, Annie
Advisor: Alexander, Stephon
Department: Haverford College. Dept. of Astronomy
Department: Haverford College. Dept. of Physics
Type: Thesis (B.S.)
Issue Date: 2012
Abstract: Cosmological inflation is a theorized period of exponential expansion of the early universe. We present results of numerical simulations of the Chern-Simons Inflation Model proposed by Alexander, Marciano and Spergel. According to this model, inflation begins with a plasma made of fermions interacting with a gauge field. The Chern-Simons interaction then drives energy from the initial random spectrum into a narrow band of frequencies at superhorizon scales. The fermion current also amplifies the gauge field at superhorizon scales. These gauge fields, when combined with the Friedmann equations, were broken into a system of hyperbolic equations and modeled numerically. We show that the amplification of horizon sized gauge fields produces the conditions to cause cosmological inflation.
Subject: Inflationary universe -- Mathematical models
Terms of Use: http://creativecommons.org/licenses/by-nc/3.0/us/
Permanent URL: http://hdl.handle.net/10066/9177

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Citation

Preston, Annie. "Expansion of the Early Universe: A Numerical Simulation of Chern-Simons Inflation". 2012. Available electronically from http://hdl.handle.net/10066/9177.

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http://creativecommons.org/licenses/by-nc/3.0/us/ Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc/3.0/us/

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