Thermodynamics in variable speed of light theories
The perfect fluid in the context of a covariant variable speed of light theory proposed by J. Magueijo is studied. On the one hand the modified first law of thermodynamics together with a recipe to obtain equations of state are obtained. On the other hand the Newtonian limit is performed to obtain t...
Guardado en:
| Autores principales: | , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2009
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/126147 |
| Aporte de: |
| id |
I19-R120-10915-126147 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Física Variable speed of light Physics Hydrostatic equilibrium White dwarf Newtonian limit Fine-structure constant Mathematical physics First law of thermodynamics Perfect fluid Quantum mechanics Covariant transformation |
| spellingShingle |
Física Variable speed of light Physics Hydrostatic equilibrium White dwarf Newtonian limit Fine-structure constant Mathematical physics First law of thermodynamics Perfect fluid Quantum mechanics Covariant transformation Racker, Juan Sisterna, Pablo D. Vucetich, Héctor Thermodynamics in variable speed of light theories |
| topic_facet |
Física Variable speed of light Physics Hydrostatic equilibrium White dwarf Newtonian limit Fine-structure constant Mathematical physics First law of thermodynamics Perfect fluid Quantum mechanics Covariant transformation |
| description |
The perfect fluid in the context of a covariant variable speed of light theory proposed by J. Magueijo is studied. On the one hand the modified first law of thermodynamics together with a recipe to obtain equations of state are obtained. On the other hand the Newtonian limit is performed to obtain the nonrelativistic hydrostatic equilibrium equation for the theory. The results obtained are used to determine the time variation of the radius of Mercury induced by the variability of the speed of light (c), and the scalar contribution to the luminosity of white dwarfs. Using a bound for the change of that radius and combining it with an upper limit for the variation of the fine structure constant, a bound on the time variation of c is set. An independent bound is obtained from luminosity estimates for Stein 2015B. |
| format |
Articulo Articulo |
| author |
Racker, Juan Sisterna, Pablo D. Vucetich, Héctor |
| author_facet |
Racker, Juan Sisterna, Pablo D. Vucetich, Héctor |
| author_sort |
Racker, Juan |
| title |
Thermodynamics in variable speed of light theories |
| title_short |
Thermodynamics in variable speed of light theories |
| title_full |
Thermodynamics in variable speed of light theories |
| title_fullStr |
Thermodynamics in variable speed of light theories |
| title_full_unstemmed |
Thermodynamics in variable speed of light theories |
| title_sort |
thermodynamics in variable speed of light theories |
| publishDate |
2009 |
| url |
http://sedici.unlp.edu.ar/handle/10915/126147 |
| work_keys_str_mv |
AT rackerjuan thermodynamicsinvariablespeedoflighttheories AT sisternapablod thermodynamicsinvariablespeedoflighttheories AT vucetichhector thermodynamicsinvariablespeedoflighttheories |
| bdutipo_str |
Repositorios |
| _version_ |
1764820450144157696 |