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Relativistic matter under extreme conditions

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In this thesis, we present the study of several physical properties of relativistic mat- ters under extreme conditions. We start by deriving the rate of the nonleptonic weak processes and the bulk viscosity in several spin-one color superconducting phases of quark matter. We also calculate the bulk viscosity in the…

In this thesis, we present the study of several physical properties of relativistic mat- ters under extreme conditions. We start by deriving the rate of the nonleptonic weak processes and the bulk viscosity in several spin-one color superconducting phases of quark matter. We also calculate the bulk viscosity in the nonlinear and anharmonic regime in the normal phase of strange quark matter. We point out several qualitative effects due to the anharmonicity, although quantitatively they appear to be relatively small. In the corresponding study, we take into account the interplay between the non- leptonic and semileptonic weak processes. The results can be important in order to relate accessible observables of compact stars to their internal composition. We also use quantum field theoretical methods to study the transport properties in monolayer graphene in a strong magnetic field. The corresponding quasi-relativistic system re- veals an anomalous quantum Hall effect, whose features are directly connected with the spontaneous flavor symmetry breaking. We study the microscopic origin of Fara- day rotation and magneto-optical transmission in graphene and show that their main features are in agreement with the experimental data.
ContributorsWang, Xinyang, Ph.D (Author) / Shovkovy, Igor (Thesis advisor) / Belitsky, Andrei (Committee member) / Easson, Damien (Committee member) / Peng, Xihong (Committee member) / Vachaspati, Tanmay (Committee member) / Arizona State University (Publisher)
Created2013
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Characterization of Norbornene-Modified Cellulose Electrospun Fibers in Different Solvent Systems for Biomedical Applications

Description

We utilized biomaterial scaffolds created from an electrospinning apparatus to create fibrous scaffolds with controllable morphology. To create consistent stable fibers, norbornene-modified cellulose acetate (nor-CA) was used as the polymer in solvent solutions of trifluoroacetic acid (TFA) and acetone/N,N-dimethylacetamide (DMAc). Solution rheology was used to determine a baseline for the…

We utilized biomaterial scaffolds created from an electrospinning apparatus to create fibrous scaffolds with controllable morphology. To create consistent stable fibers, norbornene-modified cellulose acetate (nor-CA) was used as the polymer in solvent solutions of trifluoroacetic acid (TFA) and acetone/N,N-dimethylacetamide (DMAc). Solution rheology was used to determine a baseline for the nor-CA concentration used within each solvent system for electrospinning. The fibrous scaffolds were analyzed for morphology and fiber size using scanning electron microscopy. Increased fiber stability and decreased beading was found with higher concentrations of nor-CA for each solvent system. TFA appeared to be the most versatile as it was able to form fibers without beads at concentrations of 15%, 18%, and 21% nor-CA, with the most stable and uniform fibers at 21% nor-CA. This solvent had a conductivity measurement of 0.98 mS. DMAc/acetone had a much higher conductivity measurement and increased beading at lower concentrations of nor-CA.
ContributorsNorris, Quintin (Author) / Holloway, Julianne (Thesis director) / Green, Matthew (Committee member) / Barrett, The Honors College (Contributor) / School of Life Sciences (Contributor)
Created2022-05