Some studies on dark energy related problems
| dc.creator | Wang, Fei | |
| dc.creator | Yang, Jin Min | |
| dc.date | 2005-04-06 | |
| dc.date.accessioned | 2026-07-07T12:25:01Z | |
| dc.date.available | 2026-07-07T12:25:01Z | |
| dc.description | In this work we perform some studies related to dark energy. Firstly, we propose a dynamical approach to explain the dark energy content of the universe. We assume that a massless scalar field couples to the Hubble parameter with some Planck-mass suppressed interactions. This scalar field developes a Hubble parameter-dependent (thus time-dependent) vacum expectation value, which renders a time-independent relative density for dark energy and thus can explain the coincidence of the dark energy density of the universe. Secondly, we assume the dark matter particle is meta-stable and decays very lately into the dark energy scalar field. Such a conversion of matter to dark energy can give an explanation for the starting time of the accelerating expansion of the universe. Thirdly, we introduce multiple Affleck-Dine fields to the landscape scenario of dark energy in order to have the required baryon-asymmetry universe. | |
| dc.description | 9 pages, 1 fig | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0504046 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0504046 | |
| dc.identifier | Eur.Phys.J.C45:815-818,2006 | |
| dc.identifier | doi:10.1140/epjc/s2005-02457-8 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/214500 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Astrophysics | |
| dc.title | Some studies on dark energy related problems | |
| dc.type | text |