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Friday, May 10, 2019
11:00 AM - 12:00 PM
Lauritsen 469

High Energy Theory Seminar

The Weak Gravity Conjecture and Repulsive Forces
Ben Heidenreich, UMass Amherst,

The Weak Gravity Conjecture postulates the existence of a particle with charge-to-mass ratio larger than that of an extremal black hole in any consistent quantum gravity. I review the evidence for the conjecture and some of its strong forms, and compare it with a subtly different conjecture that requires a charged particle that repels its identical copy at large separations. I discuss the evidence for this "repulsive force conjecture" and comment on its relationship to black holes, as well as its potential application to theories without gravity.

For more information, please visit http://theory.caltech.edu/people/seminar/.