Casimir Effect confronts Cosmological Constant
| dc.creator | Mahajan, Gaurang | |
| dc.creator | Sarkar, Sudipta | |
| dc.creator | Padmanabhan, T. | |
| dc.date | 2006-04-12 | |
| dc.date.accessioned | 2026-07-07T10:43:48Z | |
| dc.date.available | 2026-07-07T10:43:48Z | |
| dc.description | It has been speculated that the zero-point energy of the vacuum, regularized due to the existence of a suitable ultraviolet cut-off scale, could be the source of the non-vanishing cosmological constant that is driving the present acceleration of the universe. We show that the presence of such a cut-off can significantly alter the results for the Casimir force between parallel conducting plates and even lead to repulsive Casimir force when the plate separation is smaller than the cut-off scale length. Using the current experimental data we rule out the possibility that the observed cosmological constant arises from the zero-point energy which is made finite by a suitable cut-off. Any such cut-off which is consistent with the observed Casimir effect will lead to an energy density which is about 10^{12} times larger than the observed one, if gravity couples to these modes. The implications are discussed. | |
| dc.description | revtex4; four pages; 5 figs | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0604265 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0604265 | |
| dc.identifier | Phys.Lett.B641:6-10,2006 | |
| dc.identifier | doi:10.1016/j.physletb.2006.08.026 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/182371 | |
| dc.subject | Astrophysics | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Casimir Effect confronts Cosmological Constant | |
| dc.type | text |