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Cosmological aspects of string compa...

McAllister, Liam Patrick.

Cosmological aspects of string compactifications.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Cosmological aspects of string compactifications.
Author:	McAllister, Liam Patrick.
Description:	230 p.
Notes:	Adviser: Shamit Kachru.
Notes:	Source: Dissertation Abstracts International, Volume: 66-04, Section: B, page: 2132.
Contained By:	Dissertation Abstracts International66-04B.
Subject:	Physics, Elementary Particles and High Energy.
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3171827
ISBN:	9780542087356

Cosmological aspects of string compactifications.
McAllister, Liam Patrick.

Cosmological aspects of string compactifications. - 230 p.

Adviser: Shamit Kachru.

Thesis (Ph.D.)--Stanford University, 2005.

Finally, using important recent advances in moduli stabilization, I present the first concrete models of inflation in a stabilized string compactification. These models involve the motion of a D3-brane in a warped deformed conifold region of an orientifold compactification of type IIB string theory. I discuss situations in which closely-related models receive corrections from threshold effects in nonperturbative superpotentials.

ISBN: 9780542087356Subjects--Topical Terms:

227490
Physics, Elementary Particles and High Energy.

Cosmological aspects of string compactifications.
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100 0 $a McAllister, Liam Patrick. $3 244693
245 1 0 $a Cosmological aspects of string compactifications.
300 $a 230 p.
500 $a Adviser: Shamit Kachru.
500 $a Source: Dissertation Abstracts International, Volume: 66-04, Section: B, page: 2132.
502 $a Thesis (Ph.D.)--Stanford University, 2005.
520 # $a Finally, using important recent advances in moduli stabilization, I present the first concrete models of inflation in a stabilized string compactification. These models involve the motion of a D3-brane in a warped deformed conifold region of an orientifold compactification of type IIB string theory. I discuss situations in which closely-related models receive corrections from threshold effects in nonperturbative superpotentials.
520 # $a First, I investigate the dynamics of moduli in quantum field theory and in string theory, with emphasis on their implications for cosmology. I construct a smoothly bouncing cosmological model on a moving D-brane in a warped geometry. I then describe a new phenomenon in which quantum effects trap moving moduli near loci of enhanced symmetry. This is a dynamical selection mechanism with possible implications for evolution on the space of string vacua. I characterize and explain a surprising enhancement of this effect in the relativistic collisions of D-branes.
520 # $a I report on advances in the construction of cosmological models in compactifications of string theory.
520 # $a I then describe progress in moduli stabilization of perturbative heterotic string compactifications on Calabi-Yau threefolds. The combination of fractional flux from Wilson lines and a hidden-sector gaugino condensate gives rise to a potential that fixes all complex structure moduli, Kahler moduli, and the dilaton, leading to a supersymmetric AdS minimum. This is a step toward controllable de Sitter vacua of the heterotic string.
590 $a School code: 0212.
650 # 0 $a Physics, Elementary Particles and High Energy. $3 227490
690 $a 0798
710 0 # $a Stanford University. $3 212607
773 0 # $g 66-04B. $t Dissertation Abstracts International
790 $a 0212
790 1 0 $a Kachru, Shamit, $e advisor
791 $a Ph.D.
792 $a 2005
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