String Theory Seminars
Gravitational collapse in SYK models and Choptuik-like phenomenon (Quantum Spacetime Seminar Series)
by Mr. Adwait Gaikwad (TIFR, Mumbai)
Monday, July 1, 2019
from
to
(Asia/Kolkata)
at A 304
at A 304
Description |
We consider quantum quench in a deformed SYK model which permits a low energy description in terms of pseudo Nambu Goldstone modes. The bulk dual represents a gravitational collapse, represented by a bulk matter stress tensor which is discontinuous in time near the boundary. Collapse to a black hole requires the quench parameter Δϵ to exceed a certain critical value Δϵc. This corresponds to a Choptuik-like phenomenon with the Hawking temperature of the resulting black hole given by Tbh ∝ (Δϵ -Δϵc)1/2. |
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