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SUMMARY:Holographic codes and critical lattice theories - Alexander Jahn (
 Freie Universität Berlin)
DTSTART:20231201T113000Z
DTEND:20231201T123000Z
UID:TALK203728@talks.cam.ac.uk
DESCRIPTION:Many features of holographic dualities can be captured with di
 screte\, finite-dimensional quantum error-correcting codes. In this talk\,
  I review the state of the field and the previous attempts of building inc
 reasingly realistic toy models of holography with such codes\, arguing tha
 t the central challenge is to reproduce two key features of AdS/CFT: First
 \, to reproduce finite N corrections beyond the semi-classical bulk limit\
 , and second\, to associate these codes with critical lattice theories on 
 the boundary\, i.e.\, discretized versions of CFTs. Following this\, I int
 roduce our recent proposal of hyperinvariant codes (arXiv:2304.02732v2) th
 at seeks to address both issues\, and discuss the general challenges and l
 imitations of stabilizer codes to reproduce features of holography.
LOCATION:Seminar Room 1\, Newton Institute
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