Bahamonde, S;
Benisty, D;
Guendelman, E;
(2018)
Linear Potentials in Galaxy Halos by Asymmetric Wormholes.
Universe
, 4
(11)
, Article 112. 10.3390/universe4110112.
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Abstract
A spherically symmetric space-time solution for a diffusive two measures theory is studied. An asymmetric wormhole geometry is obtained where the metric coefficients has a linear term for galactic distances and the analysis of Mannheim and collaborators, can then be used to describe the galactic rotation curves. For cosmological distances a de-Sitter space-time is realized. Center of gravity coordinates for the wormhole are introduced which are the most suitable for the collective motion of a wormhole. The wormholes connect universes with different vacuum energy densities which may represent different universes in a “landscape scenario”. The metric coefficients depend on the asymmetric wormhole parameters. The coefficient of the linear potential is proportional to both the mass of the wormhole and the cosmological constant of the observed universe. Similar results are also expected in other theories like k-essence theories, that may support wormholes.
| Type: | Article |
|---|---|
| Title: | Linear Potentials in Galaxy Halos by Asymmetric Wormholes |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.3390/universe4110112 |
| Publisher version: | https://doi.org/10.3390/universe4110112 |
| Language: | English |
| Additional information: | © 2018 by the Authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
| Keywords: | asymmetric wormholes, diffusive action, two measure theories, galactic rotation curves |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10066043 |
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