2026-09-19T16:22:52Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/785422022-01-13T07:54:07Zcom_1721.1_7582com_1721.1_7581col_1721.1_131024
David I. Kaiser.
Greenwood, Ross Norman
Massachusetts Institute of Technology. Department of Physics.
Massachusetts Institute of Technology. Department of Physics
2013-04-12T19:37:44Z
2013-04-12T19:37:44Z
2012
2012
http://hdl.handle.net/1721.1/78542
836810000
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2012.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 37).
In this thesis, I investigated the extent to which the inclusion of multiple scalar fields in models of Higgs inflation produces observable departures from the single field case. I designed simulations to numerically solve the differential equations of motion in the Einstein frame governing the evolution of two nonminimally coupled fields in a quartic potential. Determining the behavior of the Hubble parameter, I found that successful inflation results in this model from a range of initial conditions. Based on calculations of the evolution of field perturbations by Courtney Peterson and Max Tegmark [6], the results suggest that the turn rate of the fields' combined velocity through field space has been sufficiently small since Hubble crossing that it may be excluded as a source of the amplification of perturbations in the Cosmic Microwave Background to their present size.
by Ross Norman Greenwood.
S.B.
37 p.
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by
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http://dspace.mit.edu/handle/1721.1/7582
Physics.
Refining the multi-field effects of Higgs inflation
Thesis
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