Joint cosmology seminar at Tufts online:

Tuesday, December 1, 2020, 2:30 pm
Zoom link will be distributed to joint cosmology seminar mailing list. If not
subscribed see
Tufts University

Spinning black holes as cosmic string factories

Yuri Levin


I will discuss what happens when a black hole captures a much larger in size cosmic string loop. In some cosmological scenarios, such encounters are not unlikely for supermassive black holes in galactic nuclei, and for primordial black holes. The talk will feature some fun physics and geometry: non-flat quadrilaterals, black-hole superradiance, one-dimensional geometric flows, and persistent ultra-relativistic gravitational-wave whips.