43 citations · 182 across the 7 of their papers we have counts for
4 papers · 1 filter
New constraints on quantum foam models from X-ray and gamma-ray observations of distant quasars
Eric S. Perlman, Saul A. Rappaport, Y. Jack Ng +3
Astronomical observations of distant quasars may be important to test models for quantum gravity, which posit Planck-scale spatial uncertainties ('spacetime foam') that would produ…
New Constraints on Quantum Gravity from X-ray and Gamma-Ray Observations
Eric S. Perlman, Saul A. Rappaport, Wayne A. Christensen +3
One aspect of the quantum nature of spacetime is its "foaminess" at very small scales. Many models for spacetime foam are defined by the accumulation power , which parameterizes…
Using Observations of Distant Quasars to Constrain Quantum Gravity
Eric S. Perlman, Y. Jack Ng, David J. E. Floyd +1
Aims. The small-scale nature of spacetime can be tested with observations of distant quasars. We comment on a recent paper by Tamburini et al. (A&A, 533, 71) which claims that Hubb…
Limits on Spacetime Foam
Wayne A. Christiansen, David J. E. Floyd, Y. Jack Ng +1
Plausibly spacetime is "foamy" on small distance scales, due to quantum fluctuations. We elaborate on the proposal to detect spacetime foam by looking for seeing disks in the image…