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SUMMARY:Hrant Gharibyan (Caltech)
DTSTART:20200521T190000Z
DTEND:20200521T210000Z
DTSTAMP:20260423T021120Z
UID:IFQ/2
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/IFQ/2/">The 
 Python's Lunch: geometric obstructions to decoding Hawking radiation</a>\n
 by Hrant Gharibyan (Caltech) as part of It from Qubit\n\n\nAbstract\nHarlo
 w and Hayden [arXiv:1301.4504] argued that distilling information out of H
 awking radiation is computationally hard despite the fact that the quantum
  state of the black hole and its radiation is relatively un-complex. I wil
 l trace this computational difficulty to a geometric obstruction in the Ei
 nstein-Rosen bridge connecting the black hole and its radiation. Inspired 
 by tensor network models\, I will present a conjecture that relates the co
 mputational hardness of distilling information to geometric features of th
 e wormhole - specifically to the exponential of the difference in generali
 zed entropies between the two non-minimal quantum extremal surfaces that c
 onstitute the obstruction. Due to its shape\, this obstruction was dubbed 
 "Python's Lunch"\, in analogy to the reptile's postprandial bulge.\n
LOCATION:https://researchseminars.org/talk/IFQ/2/
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