Gravitational collapse in SYK models and Choptuik-like phenomenon (Quantum Spacetime Seminar Series)

by Mr Adwait Gaikwad (TIFR, Mumbai)

Monday 1 Jul 2019, 11:30 → 12:30 Asia/Kolkata

A 304

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 Δϵ_c. This corresponds to a Choptuik-like phenomenon with the Hawking temperature of the resulting black hole given by T_bh ∝ (Δϵ -Δϵ_c)^1/2.

Poster 01-07-2019_Adwait__Gaikwad.pdf