Euclidean wormholes—geometries which connect disconnected boundaries—present a
challenge to a standard quantum mechanical interpretation of the theory. One potential …

Many-body chaos has emerged as a powerful framework for understanding thermalization in
strongly interacting quantum systems. While recent analytic advances have sharpened our …

We classify and study defects in 2d Jackiw-Teitelboim gravity. We show these are
holographically described by a deformation of the Schwarzian theory where the …

It has been recently proposed by Maldacena and Qi that an eternal traversable wormhole in
a two-dimensional anti–de Sitter space is the gravity dual of the low temperature limit of two …

Motivated by TT¯, we introduce and study a wide class of solvable deformations of quantum-
mechanical theories. These deformations map the Hamiltonian to a function of itself. We …

A bstract We consider the Brownian SYK model of N interacting Majorana fermions, with
random couplings that are taken to vary independently at each time. We study the out-of …

We study a sparse version of the Sachdev-Ye-Kitaev (SYK) model defined on random
hypergraphs constructed either by a random pruning procedure or by randomly sampling …

A bstract We show that the free energy at low temperatures for near-extremal black holes is
correctly obtained from the Jackiw-Teitelboim (JT) model of gravity. Our arguments apply to …

A bstract We specify bulk coordinates in Jackiw-Teitelboim (JT) gravity using a boundary-
intrinsic radar definition. This allows us to study and calculate exactly diff-invariant bulk …

A bstract We construct a model of Pauli spin operators with all-to-all 4-local interactions by
replacing Majorana fermions in the SYK model with spin operators. Equivalently, we replace …