Big extra dimensions make A too Small
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| Natura: | Artículo científico |
| Lingua: | en |
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Sociedade Brasileira de Física
2005
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| _version_ | 1876422869620097024 |
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| author | Rafael D. Sorkin |
| author_facet | Rafael D. Sorkin |
| contents | Big extra dimensions make A too Small Rafael D. Sorkin Física, Astronomía y Matemáticas I argue that the true quantum gravity scale cannot be much larger than the Planck length, because if it werethen the quantum gravity-induced fluctuations in L would be insufficient to produce the observed cosmic darkenergy. If one accepts this argument, it rules out scenarios of the large extra dimensions type. I also point outthat the relation between the lower and higher dimensional gravitational constants in a Kaluza-Klein theory isprecisely what is needed in order that a black holes entropy admit a consistent higher dimensional interpretationin terms of an underlying spatio-temporal discreteness. 2005 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46435212 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.2A Vol.35 |
| format | Artículo científico |
| id | redalyc_46435212 |
| institution | Redalyc |
| language | en |
| publishDate | 2005 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Big extra dimensions make A too Small Rafael D. Sorkin Física, Astronomía y Matemáticas Big extra dimensions make A too Small Rafael D. Sorkin Física, Astronomía y Matemáticas I argue that the true quantum gravity scale cannot be much larger than the Planck length, because if it werethen the quantum gravity-induced fluctuations in L would be insufficient to produce the observed cosmic darkenergy. If one accepts this argument, it rules out scenarios of the large extra dimensions type. I also point outthat the relation between the lower and higher dimensional gravitational constants in a Kaluza-Klein theory isprecisely what is needed in order that a black holes entropy admit a consistent higher dimensional interpretationin terms of an underlying spatio-temporal discreteness. 2005 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46435212 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.2A Vol.35 |
| title | Big extra dimensions make A too Small |
| topic | Física, Astronomía y Matemáticas |
| url | https://www.redalyc.org/articulo.oa?id=46435212 |