Abstract The Sachdev–Ye–Kitaev (SYK) model is a strongly coupled, quantum many-body
system that is chaotic, nearly conformally invariant, and exactly solvable. This remarkable …

A bstract We study some aspects of the de Sitter version of Jackiw-Teitelboim gravity.
Though we do not have propagating gravitons, we have a boundary mode when we …

The Jackiw-Teitelboim (JT) model arises from the dimensional reduction of charged black
holes. Motivated by the holographic complexity conjecture, we calculate the late-time rate of …

A bstract We study rotating black holes in five dimensions using the nAdS 2/nCFT 1
correspondence. A consistent truncation of pure Einstein gravity (with a cosmological …

A bstract We study the behaviour of extremal and near-extremal black holes at low energies
and low temperatures and find that it can be understood from the near-horizon AdS 2 region …

A bstract AdS 2 plays an extremely important role in black-hole physics. We construct
several infinite families of supergravity solutions that are asymptotically AdS 2 in the UV, and …

We present a gravitational theory that interpolates between JT gravity, and a gravity theory
with a fixed boundary Hamiltonian. For this, we consider a matrix integral with the insertion …

We introduce a differential refinement of Cohomotopy cohomology theory, defined on
Penrose diagram spacetimes, whose cocycle spaces are unordered configuration spaces of …

A bstract We formulate the path integral for Jackiw-Teitelboim gravity in the second order
formalism working directly with the metric and the dilaton. We consider the theory both in …

A bstract We consider warped AdS 2× ℳ 4 backgrounds within F (4) gauged supergravity in
six dimensions. In particular, we are able to find supersymmetric solutions of the …