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SUMMARY:Quantum Black Holes\, Emergent Gravity\, and the Dark Universe - P
 rof Erik Verlinde (Institute for Theoretical Physics\, University of Amste
 rdam)
DTSTART:20201015T171500Z
DTEND:20201015T183000Z
UID:TALK152026@talks.cam.ac.uk
CONTACT:Miroslava Novoveska
DESCRIPTION:Starting with Hawking’s famous discovery of black hole radia
 tion physicists have used black holes as theoretical laboratories to gain 
 new insights in to the quantum nature of gravity and spacetime. The study 
 of quantum black holes have recently led to the insight that Einstein’s 
 theory of general relativity\, and the geometry of spacetime itself\, shou
 ld be viewed as being emergent from an underlying microscopic quantum theo
 ry that\, in a sense\, lives on the boundary of spacetime. A central role 
 of these developments is played by the notion of quantum entanglement and 
 its associated entropy. At present this theoretical approach is best under
 stood for spacetimes that are negatively curved. Observation however tell 
 us that our universe carries a positive curvature due to the presence of d
 ark energy. In this lecture I will give an accessible account of these dev
 elopments\, and will present my view on how emergent gravity may sheds lig
 ht on the mysteries surrounding the observed dark energy and dark matter i
 n our universe.
LOCATION:Online
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