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| dc.contributor | Verdaguer Oms, Enric, 1950- | |
| dc.creator | Mozota Frauca, Àlvaro | |
| dc.date | 2015-10-22T08:04:34Z | |
| dc.date | 2015-10-22T08:04:34Z | |
| dc.date | 2015-06 | |
| dc.date.accessioned | 2024-12-16T10:21:17Z | |
| dc.date.available | 2024-12-16T10:21:17Z | |
| dc.identifier | http://hdl.handle.net/2445/67405 | |
| dc.identifier.uri | http://fima-docencia.ub.edu:8080/xmlui/handle/123456789/12459 | |
| dc.description | Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Any: 2015, Tutor: Enric Verdaguer | |
| dc.description | The purpose of this paper is to study the homogeneous backreaction of non-zero mass conformally coupled scalar fields on a cosmological background, including at spacetime, at one-loop order. For this study, the semiclassical Friedmann equation is solved using a method called order reduction. For a nearly at background we get a scale factor that evolves to a stationary scale factor depending on the initial quantum state. We also prove that a de Sitter scale factor is also a mathematical solution of the semiclassical Friedmann equation, and we argue this is a runaway type solution. | |
| dc.format | 5 p. | |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.rights | cc-by-nc-nd (c) Mozota Frauca, 2015 | |
| dc.rights | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.source | Treballs Finals de Grau (TFG) - Física | |
| dc.subject | Cosmogonia | |
| dc.subject | Relativitat (Física) | |
| dc.subject | Treballs de fi de grau | |
| dc.subject | Cosmogony | |
| dc.subject | Relativity (Physics) | |
| dc.subject | Bachelor's theses | |
| dc.title | Backreaction from non-zero mass conformally coupled scalar fields and the quantum creation of the Universe | |
| dc.type | info:eu-repo/semantics/bachelorThesis |
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