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DC Field | Value | Language |
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dc.contributor.advisor | Solà Peracaula, Joan | - |
dc.contributor.author | Bernárdez Gil, Guillermo | - |
dc.date.accessioned | 2016-03-08T17:30:12Z | - |
dc.date.available | 2016-03-08T17:30:12Z | - |
dc.date.issued | 2016-01 | - |
dc.identifier.uri | http://hdl.handle.net/2445/96261 | - |
dc.description | Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2016, Tutor: Joan Solà Peracaula | cat |
dc.description.abstract | The possibility of a slow cosmic evolution of fundamental \constants" of Nature has been discussed for a long time without being consolidated; recently, however, more and more experiments are arising whose results seem to support this idea. Apart from that, in an expanding universe the vacuum energy density p is expected to be a time-evolving parameter rather than the rigid one proposed in the standard ACDM model; in fact, quantum feld theory in curved space time suggests a slow evolution determined by the expansion rate of the universe H. In this work, we will try to obtain and develop some cosmological models with such a a dynamical vacuum energy density, and at the same time we will check whether they can provide an explanation for the alleged slow time variation of the fundamental constants | cat |
dc.format.extent | 5 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | eng |
dc.rights | cc-by-nc-nd (c) Bernárdez, 2016 | - |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | - |
dc.source | Treballs Finals de Grau (TFG) - Física | - |
dc.subject.classification | Models astronòmics | cat |
dc.subject.classification | Cosmologia | cat |
dc.subject.classification | Treballs de fi de grau | cat |
dc.subject.classification | Constants físiques | cat |
dc.subject.other | Astronomical models | eng |
dc.subject.other | Cosmology | eng |
dc.subject.other | Bachelor's theses | eng |
dc.subject.other | Physical constants | eng |
dc.title | Fundamental constants of nature and their possible time variation | eng |
dc.type | info:eu-repo/semantics/bachelorThesis | eng |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | eng |
Appears in Collections: | Treballs Finals de Grau (TFG) - Física |
Files in This Item:
File | Description | Size | Format | |
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TFG_Fis_Bernardez_Gil_Guillermo.pdf | 274.06 kB | Adobe PDF | View/Open |
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