Vacuum decay in the presence of gravity
| dc.contributor.advisor | Garriga Torres, Jaume | |
| dc.contributor.author | Planella Planas, Guim | |
| dc.date.accessioned | 2020-10-21T16:26:32Z | |
| dc.date.available | 2020-10-21T16:26:32Z | |
| dc.date.issued | 2020-06 | |
| dc.description | Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2020 Tutor: Jaume Garriga Torres | ca |
| dc.description.abstract | In this paper, two mechanisms for vacuum decay in field theory are compared. First, using the Coleman-de Lucia method, the transition probability between two non-degenerate vacua is computed. Then this calculation is repeated according to the newly proposed yover method. For this purpose, a numerical simulation is used which solves Einstein's equation for a spherically symmetric metric and with a scalar field as a source. The obtained result shows the yover decay is dominant for a certain parametric range and it has a larger probability of upward transitions relative to CdL | ca |
| dc.format.extent | 5 p. | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.uri | https://hdl.handle.net/2445/171415 | |
| dc.language.iso | eng | ca |
| dc.rights | cc-by-nc-nd (c) Planella, 2020 | |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | * |
| dc.source | Treballs Finals de Grau (TFG) - Física | |
| dc.subject.classification | Buit | cat |
| dc.subject.classification | Teoria de camps | cat |
| dc.subject.classification | Treballs de fi de grau | cat |
| dc.subject.other | Vacuum | eng |
| dc.subject.other | Field theory | eng |
| dc.subject.other | Bachelor's theses | eng |
| dc.title | Vacuum decay in the presence of gravity | eng |
| dc.type | info:eu-repo/semantics/bachelorThesis | ca |
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