On a gravitational cutoff for the vacuum energy
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| Format: | Artículo científico |
| Langue: | en |
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Sociedade Brasileira de Física
2006
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| _version_ | 1876477241883361280 |
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| author | Hristu Culetu |
| author_facet | Hristu Culetu |
| contents | On a gravitational cutoff for the vacuum energy Hristu Culetu Física, Astronomía y Matemáticas UV cutoff Dark energy Quantum gravity Schwarzschild radius Holographic principle A possible connection between the energy W of the vacuum fluctuations of quantum fields and gravity inempty space is conjectured in this paper using a natural cutoff of high momenta with the help of the gravitationalradius of the vacuum region considered. We found that below some critical length L=1mm the pressures is one third of the energy density e, but above 1 mm the equation of state is s = ¡e as for dark energy). In thecase of a massive field, W does not depend on the mass of the field for L << 1mm but for L >> 1mm it doesnot depend on ~. In addition, when the Newton constant tends to zero, W becomes infinite. The energy densityis also a function of the volume V of the vacuum region taken into account. 2006 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46403616 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.2B Vol.36 |
| format | Artículo científico |
| id | redalyc_46403616 |
| institution | Redalyc |
| language | en |
| publishDate | 2006 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | On a gravitational cutoff for the vacuum energy Hristu Culetu Física, Astronomía y Matemáticas UV cutoff Dark energy Quantum gravity Schwarzschild radius Holographic principle On a gravitational cutoff for the vacuum energy Hristu Culetu Física, Astronomía y Matemáticas UV cutoff Dark energy Quantum gravity Schwarzschild radius Holographic principle A possible connection between the energy W of the vacuum fluctuations of quantum fields and gravity inempty space is conjectured in this paper using a natural cutoff of high momenta with the help of the gravitationalradius of the vacuum region considered. We found that below some critical length L=1mm the pressures is one third of the energy density e, but above 1 mm the equation of state is s = ¡e as for dark energy). In thecase of a massive field, W does not depend on the mass of the field for L << 1mm but for L >> 1mm it doesnot depend on ~. In addition, when the Newton constant tends to zero, W becomes infinite. The energy densityis also a function of the volume V of the vacuum region taken into account. 2006 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46403616 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.2B Vol.36 |
| title | On a gravitational cutoff for the vacuum energy |
| topic | Física, Astronomía y Matemáticas UV cutoff Dark energy Quantum gravity Schwarzschild radius Holographic principle |
| url | https://www.redalyc.org/articulo.oa?id=46403616 |