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SUMMARY:Conformal unitary circuits and toy quantum gravity - Lluis Masanes
 \, UCL
DTSTART:20250130T150000Z
DTEND:20250130T160000Z
UID:TALK224563@talks.cam.ac.uk
CONTACT:Laurens Lootens
DESCRIPTION:We introduce a spin-chain with dynamics consisting of a unitar
 y circuit with discrete conformal symmetry. This model is holographically 
 dual to a toy theory of quantum gravity in 2+1 dimensions\, where certain 
 tensor-network states correspond to classical discrete geometries. Unlike 
 previous approaches\, like holographic codes\, these tensor networks and g
 eometries evolve in time\, reproducing some general relativity phenomena. 
 Also\, these states satisfy the Ryu-Takayanagi correspondence between enta
 nglement and geometry\, but they provide much more\, they contain a comple
 te description of the bulk\, including the interior of black holes\, a fea
 ture that is not so transparent in standard AdS/CFT.
LOCATION:MR2
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