PIRSA ID: 20090021
Series: Quantum Fields and Strings
Event Type: Seminar
Scientific Area(s): Quantum Fields and Strings
End date: 2020-09-29
Speaker(s): Mark Van Raamsdonk University of British Columbia (UBC) - Department of Physics and Astronomy
In this talk, we review an approach to describing cosmological physics using ordinary AdS/CFT, where the cosmological physics is the effective description of an end-of-the-world brane which cuts off the second asymptotic region of a two-sided black hole. The worldvolume geometry of the brane is an FRW big-bang/big-crunch spacetime. Infavorable circumstances, the brane acts as a Randall-Sundrum Planck brane so that gravity localizes. We describe a microscopic construction for such an end-of-the-world brane with localized gravity in AdS/CFT, starting from N=4 SYM theory. We suggest specific microscopic states of N=4 SYM theory that may encode the physics in a four-dimensional cosmological spacetime.