Comoving suppression mechanism and cosmological constant problem
| dc.creator | Shen, Jian Qi | |
| dc.date | 2004-01-17 | |
| dc.date.accessioned | 2026-07-07T03:28:25Z | |
| dc.date.available | 2026-07-07T03:28:25Z | |
| dc.description | In this paper, we assume that the observer is fixed in a comoving frame of reference with $g_{00}=\fracλΛ$, where $λ$ and $Λ$ denote the comoving parameter and the cosmological constant, respectively. By using the {\it comoving suppression mechanism} and {\it Mach's principle} (the latter of which is used to determine the comoving parameter $λ$), we calculate the vacuum energy density of quantum fluctuation field in the above-mentioned comoving frame of reference. It is shown that in such a comoving frame of reference, the cosmological constant will greatly decrease by many orders of magnitude (if Mach's principle is applied to this calculation, then it will be shown that $Λ$ is reduced by about 120 orders of magnitude). Additionally, we briefly discuss the related topics such as the varying observed speed of light ($\frac{{\rm d}c}{{\rm d}t}={\mathcal O}(10^{-9}{\rm m/s}^{2})$) and the mystery of anomalous acceleration ($\sim 10^{-9}{\rm m/s}^{2}$) acquired by the Pioneer 10/11, Galileo and Ulysses spacecrafts. | |
| dc.description | 4 pages, Latex | |
| dc.identifier | https://arxiv.org/abs/gr-qc/0401077 | |
| dc.identifier | http://arxiv.org/abs/gr-qc/0401077 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/34820 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.title | Comoving suppression mechanism and cosmological constant problem | |
| dc.type | text |