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SUMMARY:Backreaction\, Quantum Chaos\, and Emergent Geometry in SYK–JT G
 ravity Systems - Chente Ma (Great Bay University)
DTSTART:20250919T090000Z
DTEND:20250919T103000Z
UID:TALK235636@talks.cam.ac.uk
DESCRIPTION:We study matter backreaction\, quantum chaos\, and emergent ge
 ometry in JT gravity coupled to Dirac fermions via deformed SYK models. By
  introducing bulk fermion mass and non-Gaussian disorder\, we uncover how 
 these deformations affect entanglement dynamics and the spectral form fact
 or&rsquo\;s timescales\, while preserving the system&rsquo\;s random matri
 x classification. In the large‑N limit\, we identify a transition in von
  Neumann algebra structure from Type I to Type II\, indicating maximally e
 ntangled graviton&ndash\;matter states. These findings shed light on semi-
 classical holography and the algebraic origins of emergent spacetime.
LOCATION:Seminar Room 2\, Newton Institute
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