Beyond particles and localities in quantum matters

Many properties of strongly correlated materials behave differently from those obeying the standard theory of metals. Explaining such anomalous properties may require one to consider a non-traditional model. In this dissertation, we construct several phenomenological models based on the notions of unparticles and nonlocalities to explain some of the exotic properties of the high temperature cuprate superconductors. The properties of the cuprates that we investigate include the fractional power-law in optical conductivity, the power-law liquid form of the scattering life-time, the violation of the conductivity sum rule, and the appearance of the anomalous dimension for the current. Our results suggest that the correct description of the low-energy theory of the normal state of the cuprates could involve unparticles and nonlocal actions.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Physics

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2018

Author dc:creator

• Limtragool, Kridsanaphong

Contributors dc:contributor

• Phillips, Philip W.
• Hughes, Taylor L.
• Cooper, S. L
• Faulkner, Thomas

• High temperature cuprate superconductors, Non-Fermi liquids, Unparticles, Nonlocalities

Statement dc:rights

• Copyright 2018 by Kridsanaphong Limtragool

Language dc:language

en

Handle dc:identifier

http://hdl.handle.net/2142/100989

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/100989