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Aspects of String Dualities--Orientifolds, F-Theory and Super D-Branes & the M5-Brane


Park, Jaemo (1997) Aspects of String Dualities--Orientifolds, F-Theory and Super D-Branes & the M5-Brane. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/qk53-dg31.


We probe string dualities by using the orientifold and F-theory, and by investigating world volume actions of super D-branes and super M-branes.

We first study orientifolds in various dimensions. We construct orientifolds dual to M-theory compactified on the Klein bottle and on the Möbius band, respectively. Six-dimensional orientifolds with N=1 supersymmetry are constructed. They have multiple tensor multiplets, which cannot be obtained by the conventional Calabi-Yau compactifications. We find F-theory duals for some of these models, thereby making manifest the phase transitions involving the tensionless strings these models can have.

We construct orientifold and F-theory duals of the heterotic string models constructed by Chaudhuri, Hockney and Lykken (CHL) and study N=2 supersymmetric F-theory vacua in six dimensions.

Next, we construct the supersymmetric world volume action of the M-theory 5-brane in a flat eleven-dimensional background. Finally, dual D-brane actions are obtained by carrying out a duality transformation of the world volume gauge field of the D-brane and their properties are studied.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:Physics
Degree Grantor:California Institute of Technology
Division:Physics, Mathematics and Astronomy
Major Option:Physics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Preskill, John P.
Group:Caltech Theory
Thesis Committee:
  • Unknown, Unknown
Defense Date:2 June 1997
Record Number:CaltechTHESIS:08082017-142128708
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:10374
Deposited By: Benjamin Perez
Deposited On:09 Aug 2017 20:30
Last Modified:16 Apr 2021 23:14

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