A Caltech Library Service

Unusual Signs in Quantum Field Theory


O'Connell, Dónal (2007) Unusual Signs in Quantum Field Theory. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/FEFB-JZ53.


Quantum field theory is by now a mature field. Nevertheless, certain physical phenomena remain difficult to understand. This occurs in some cases because well-established quantum field theories are strongly coupled and therefore difficult to solve; in other cases, our current understanding of quantum field theory seems to be inadequate. In this thesis, we will discuss various modifications of quantum field theory which can help to alleviate certain of these problems, either in their own right or as a component of a greater computational scheme. The modified theories we will consider all include unusual signs in some aspect of the theory. We will also discuss limitations on what we might expect to see in experiments, imposed by sign constraints in the customary formulation of quantum field theory.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:lattice QCD; physics beyond standard model
Degree Grantor:California Institute of Technology
Division:Physics, Mathematics and Astronomy
Major Option:Physics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Wise, Mark B.
Group:Caltech Theory
Thesis Committee:
  • Wise, Mark B. (chair)
  • Filippone, Bradley W.
  • Preskill, John P.
  • Ramsey-Musolf, Michael J.
Defense Date:16 May 2007
Record Number:CaltechETD:etd-05242007-141715
Persistent URL:
O'Connell, Dónal 0000-0001-8886-6391
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:2022
Deposited By: Imported from ETD-db
Deposited On:31 May 2007
Last Modified:26 Feb 2020 20:29

Thesis Files

PDF - Final Version
See Usage Policy.


Repository Staff Only: item control page