We review recent developments in Jackiw–Teitelboim gravity. This is a simple solvable
model of quantum gravity in two dimensions (that arises eg from the s-wave sector of higher …

This is a review of the Sachdev-Ye-Kitaev (SYK) model of compressible quantum many-
body systems without quasiparticle excitations, and its connections to various theoretical …

A bstract There are various definitions of the concept of complexity in Quantum Field Theory
as well as for finite quantum systems. For several of them there are conjectured holographic …

A bstract The emergence of the bulk Hilbert space is a mysterious concept in holography. In
[1], the SYK model was solved in the double scaling limit by summing chord diagrams. Here …

We generalize the recently discovered relationship between JT gravity and double-scaled
random matrix theory to the case that the boundary theory may have time-reversal symmetry …

A bstract We argue that the late time behavior of horizon fluctuations in large anti-de Sitter
(AdS) black holes is governed by the random matrix dynamics characteristic of quantum …

In finite entropy systems, real-time partition functions do not decay to zero at late time.
Instead, assuming random matrix universality, suitable averages exhibit a growing" ramp" …

We construct a nearly-$ AdS_2 $ solution describing an eternal traversable wormhole. The
solution contains negative null energy generated by quantum fields under the influence of …

A bstract The SYK model is a quantum mechanical model that has been proposed to be
holographically dual to a 1+ 1-dimensional model of a quantum black hole. An emergent …

A Fermi surface coupled to a scalar field can be described in a 1/N expansion by choosing
the fermion-scalar Yukawa coupling to be random in the N-dimensional flavor space, but …