Did the dark energy always have a large Compton wavelength?
| dc.creator | Bassett, Bruce A. | |
| dc.creator | Kunz, Martin | |
| dc.creator | Parkinson, David | |
| dc.creator | Ungarelli, Carlo | |
| dc.date | 2002-10-29 | |
| dc.date | 2002-11-15 | |
| dc.date.accessioned | 2026-07-07T02:05:53Z | |
| dc.date.available | 2026-07-07T02:05:53Z | |
| dc.description | Until now all well-studied dark energy models proposed have very large Compton wavelengths, $λ_c > 100 Mpc$ at all time and hence show no clustering on small scales. Evidence against this would disfavour both $Λ$CDM and quintessence. We show however, that large $λ_c$ is actually favoured by current CMB, LSS and SN1a data by comparing quintessence with a condensate scenario with the same background dynamics. The condensate scenario has a very small $λ_c$ before making a transition to negative pressure and large $λ_c$ and therefore exhibits a rich CMB phenomenology which roughly interpolates between $Λ$CDM and flat CDM models. | |
| dc.description | 5 pages, 3 colour eps figures. Related to a talk given by BB at the XVIIIth IAP Colloquium "On the nature of Dark Energy", Paris, July 2002 | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0210640 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0210640 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/5244 | |
| dc.subject | Astrophysics | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Did the dark energy always have a large Compton wavelength? | |
| dc.type | text |