| dc.contributor |
Solà Peracaula, Joan |
|
| dc.creator |
Bernárdez Gil, Guillermo |
|
| dc.date |
2016-03-08T17:30:12Z |
|
| dc.date |
2016-03-08T17:30:12Z |
|
| dc.date |
2016-01 |
|
| dc.date.accessioned |
2024-12-16T10:22:06Z |
|
| dc.date.available |
2024-12-16T10:22:06Z |
|
| dc.identifier |
http://hdl.handle.net/2445/96261 |
|
| dc.identifier.uri |
http://fima-docencia.ub.edu:8080/xmlui/handle/123456789/13767 |
|
| dc.description |
Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2016, Tutor: Joan Solà Peracaula |
|
| dc.description |
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 |
|
| dc.format |
5 p. |
|
| dc.format |
application/pdf |
|
| dc.language |
eng |
|
| dc.rights |
cc-by-nc-nd (c) Bernárdez, 2016 |
|
| 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 |
Models astronòmics |
|
| dc.subject |
Cosmologia |
|
| dc.subject |
Treballs de fi de grau |
|
| dc.subject |
Constants físiques |
|
| dc.subject |
Astronomical models |
|
| dc.subject |
Cosmology |
|
| dc.subject |
Bachelor's theses |
|
| dc.subject |
Physical constants |
|
| dc.title |
Fundamental constants of nature and their possible time variation |
|
| dc.type |
info:eu-repo/semantics/bachelorThesis |
|