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Meson Condensation and Holographic QCD

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Author: Zora, Kyle Edward
Advisor: Erlich, Joshua
Committee Members: Krakauer, Henry; Shi, Junping
Issued Date: 7/17/2012
Subjects: AdS/CFT
Chiral symmetry breaking
Quantum chromodynamics
Pion condensation
Anti-de Sitter/ conformal field theory
URI: http://hdl.handle.net/10288/16753
Description: Quantum Chromodynamics (QCD), which describes the strong nuclear force, is difficult to solve both analytically and numerically. We use a five-dimensional model of QCD motivated by the Anti-de Sitter/Conformal Field Theory (AdS/CFT) duality originally proposed by Maldacena. We discuss how this model and other variations in the literature represent chiral symmetry breaking, and test whether these models correctly reproduce chiral symmetry beyond leading order. We compare the predictions of two models, one which is correct to leading order, and another which is correct beyond leading order. The model correct to leading order does not properly predict the pion condensation phase transition, whereas the model with the correct beyond leading order qualitatively agrees with chiral perturbation theory in its description of pion condensation. Using these two models, we calculate certain observables and find agreement with experiment to within 15%.
Degree: Bachelors of Science in Physics

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