Quantum foam: Observational limits, holographic cosmology and MoNDian dark matter

by Prof. Jack Ng (University of North Carolina)

Thursday Jul 28, 2011, 3:00 PM → 5:00 PM Pacific/Honolulu

417 (Watanabe Hall)

Probed at small scales, spacetime appears to be very complicated -- something akin in complexity to a turbulent froth which John Wheeler dubbed quantum foam (aka spacetime foam.) I will give an elementary exposition of my recent work on quantum foam, including the proposal to use powerful telescope interferometers to probe spacetime foam with extra-galactic sources. I will also discuss quantum foam-inspired cosmology and show that quantum foam provides a possible connection between global physics and local galactic dynamics involving the phenomenon of flat rotation curves of galaxies and the observed Tully-Fisher relation.