Cosmological Constant as Vacuum Energy Density of Quantum Field Theories on Noncommutative Spacetime
| dc.creator | Wang, Xiao-Jun | |
| dc.date | 2004-12-08 | |
| dc.date | 2004-12-15 | |
| dc.date.accessioned | 2026-07-07T04:17:49Z | |
| dc.date.available | 2026-07-07T04:17:49Z | |
| dc.description | We propose a new approach to understand hierarchy problem for cosmological constant in terms of considering noncommutative nature of space-time. We calculate that vacuum energy density of the noncommutative quantum field theories in nontrivial background, which admits a smaller cosmological constant by introducing an higher noncommutative scale $μ_{NC}\sim M_p$. The result $ρ_Λ\sim 10^{-6}Λ_{SUSY}^8M_p^4/μ_{NC}^8$ yields cosmological constant at the order of current observed value for supersymmetry breaking scale at 10TeV. It is the same as Banks' phenomenological formula for cosmological constant. | |
| dc.description | 7 pages, no figures, v4, references added | |
| dc.identifier | https://arxiv.org/abs/hep-th/0412084 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0412084 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/52918 | |
| dc.subject | High Energy Physics - Theory | |
| dc.subject | Astrophysics | |
| dc.title | Cosmological Constant as Vacuum Energy Density of Quantum Field Theories on Noncommutative Spacetime | |
| dc.type | text |