Journal
PHYSICAL REVIEW LETTERS
Volume 105, Issue 10, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.105.101602
Keywords
-
Categories
Funding
- NSF [PHY0854743]
- G. A. & M. M. Downsbrough Endowment
- Eberly research fund of Penn State
- European Union [MRTN-CT-2006-035863]
- Alfred P. Sloan Foundation
- Eberly College of Science
Ask authors/readers for more resources
The noncommutative spectral action extends our familiar notion of commutative spaces, using the data encoded in a spectral triple on an almost commutative space. Varying a rather simple action, one can derive all of the standard model of particle physics in this setting, in addition to a modified version of Einstein-Hilbert gravity. In this Letter we use observations of pulsar timings, assuming that no deviation from general relativity has been observed, to constrain the gravitational sector of this theory. While the bounds on the coupling constants remain rather weak, they are comparable to existing bounds on deviations from general relativity in other settings and are likely to be further constrained by future observations.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available