dc.contributor.advisor | Li, Aigen | eng |
dc.contributor.advisor | Retzloff, David G. | eng |
dc.contributor.author | Shen, Zhiyong | eng |
dc.date.issued | 2012 | eng |
dc.date.submitted | 2012 Summer | eng |
dc.description | Title from PDF of title page (University of Missouri--Columbia, viewed on October 30, 2012). | eng |
dc.description | The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. | eng |
dc.description | Dissertation advisors: Dr. Aigen Li and Dr. David Retzloff | eng |
dc.description | Includes bibliographical references. | eng |
dc.description | Vita. | eng |
dc.description | Ph. D. University of Missouri--Columbia 2012. | eng |
dc.description | "July 2012" | eng |
dc.description.abstract | Traversable wormholes have become a subject of intensive studies since 1988 when Morris and Thorne published their paper which put forward the energy conditions for traversable wormholes. A number of researchers have calculated the stress-energy tensors of different fields but failed to find one that meets the requirement of the wormhole geometry. Some others find different schemes to sustain traversable wormholes but either on the Planck scale or hypothetically on a macroscopic scale. Groves has developed a method to compute the renormalized stress-energy tensor for a quantized massive spin ½ field in a general static spherically symmetric spacetime. Using this method, I have computed the renormalized stress-energy tensors of two quantized massive spin ½ fields in four static spherically symmetric wormhole spacetimes. The results of my calculation suggest that these two fields can be considered exotic. However, due to the technical difficulties in implementing this method, a series of approximations are used in the computation in order to make the problem mathematically tractable; but it is not clear under what physical circumstances these approximations could hold. Besides, the cases that I investigated turned out to involve unphysically large energy densities. Because of these reasons, no firm physical conclusions can be drawn. | eng |
dc.description.bibref | Includes bibliographical references. | eng |
dc.format.extent | xviii, 238 pages | eng |
dc.identifier.oclc | 872565936 | eng |
dc.identifier.uri | https://doi.org/10.32469/10355/15899 | eng |
dc.identifier.uri | https://hdl.handle.net/10355/15899 | |
dc.language | English | eng |
dc.publisher | University of Missouri--Columbia | eng |
dc.relation.ispartofcommunity | University of Missouri--Columbia. Graduate School. Theses and Dissertations | eng |
dc.rights | OpenAccess. | eng |
dc.rights.license | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License. | |
dc.subject | general relativity | eng |
dc.subject | stress-energy tensor | eng |
dc.subject | traversable wormhole | eng |
dc.subject | quantum field theory | eng |
dc.subject | curved spacetime | eng |
dc.title | Quantized massive spin 1/2 fields on static spherically symmetric wormhole spacetimes | eng |
dc.type | Thesis | eng |
thesis.degree.discipline | Physics and astronomy (MU) | eng |
thesis.degree.grantor | University of Missouri--Columbia | eng |
thesis.degree.level | Doctoral | eng |
thesis.degree.name | Ph. D. | eng |