556 citations · 3.3k across the 66 of their papers we have counts for
34 papers · 1 filter
Inner products and closed universes
Jordan Cotler, Kristan Jensen
We study overlaps of late-time states in semiclassical de Sitter quantum gravity. In a family of deformations of de Sitter JT gravity, we compute the no-boundary wavefunction to on…
Renormalization in Liouville gravity and stochastic inflation
Jordan Cotler, Victor Ivo, Juan Maldacena
Motivated by inflation and Liouville theory, we consider random -dimensional geometries characterized by an overall scale factor given in terms of a rando…
Carrollian holographic duals are non-local
Jordan Cotler, Prateksh Dhivakar, Kristan Jensen
Mapping the -matrix of a generic theory of flat space gravity coupled to matter to correlation functions of a putative Carrollian dual, we show that bulk interactions imply boun…
Norm of the no-boundary state
Jordan Cotler, Kristan Jensen
We consider Einstein gravity with positive cosmological constant coupled to matter in an asymptotically de Sitter universe with sphere boundary at timelike infinity. In this settin…
A finite Carrollian critical point
Jordan Cotler, Prateksh Dhivakar, Kristan Jensen
We construct examples of renormalizable Carrollian theories with finite effective central charge and non-trivial dynamics. These include critical points that are not scale-invarian…
Soft gravitons in three dimensions
Jordan Cotler, Kristan Jensen, Stefan Prohazka +2
We consider quantum gravity with zero cosmological constant in three dimensions. First, we show that pure quantum gravity can be written as a magnetic Carrollian theory living on n…
Quantizing Carrollian field theories
Jordan Cotler, Kristan Jensen, Stefan Prohazka +3
Carrollian field theories have recently emerged as a candidate dual to flat space quantum gravity. We carefully quantize simple two-derivative Carrollian theories, revealing a stro…
Non-perturbative de Sitter Jackiw-Teitelboim gravity
Jordan Cotler, Kristan Jensen
With non-perturbative de Sitter gravity and holography in mind, we deduce the genus expansion of de Sitter Jackiw-Teitelboim (dS JT) gravity. We find that this simple model of quan…
Renormalizing Diffusion Models
Jordan Cotler, Semon Rezchikov
We explain how to use diffusion models to learn inverse renormalization group flows of statistical and quantum field theories. Diffusion models are a class of machine learning mode…
Isometric evolution in de Sitter quantum gravity
Jordan Cotler, Kristan Jensen
We study time evolution in two simple models of de Sitter quantum gravity, Jackiw-Teitelboim gravity and a minisuperspace approximation to Einstein gravity with a positive cosmolog…
An Integer Basis for Celestial Amplitudes
Jordan Cotler, Noah Miller, Andrew Strominger
We present a discrete basis of solutions of the massless Klein-Gordon equation in 3+1 Minkowski space which transform as sl(2,C) Lorentz/conformal primaries and descendants, and wh…
Cosmic ER=EPR in dS/CFT
Jordan Cotler, Andrew Strominger
In the dS/CFT correspondence, bulk states on global spacelike slices of de Sitter space are dual to (in general) entangled states in the tensor product of the dual CFT Hilbert spac…
Quantum Scars in Quantum Field Theory
Jordan Cotler, Annie Y. Wei
We develop the theory of quantum scars for quantum fields. By generalizing the formalisms of Heller and Bogomolny from few-body quantum mechanics to quantum fields, we find that un…
A precision test of averaging in AdS/CFT
Jordan Cotler, Kristan Jensen
We reconsider the role of wormholes in the AdS/CFT correspondence. We focus on Euclidean wormholes that connect two asymptotically AdS or hyperbolic regions with $\mathbb{S}^1\time…
The Universe as a Quantum Encoder
Jordan Cotler, Andrew Strominger
Quantum mechanical unitarity in our universe is challenged both by the notion of the big bang, in which nothing transforms into something, and the expansion of space, in which some…
Renormalization Group Flow as Optimal Transport
Jordan Cotler, Semon Rezchikov
We establish that Polchinski's equation for exact renormalization group flow is equivalent to the optimal transport gradient flow of a field-theoretic relative entropy. This provid…
Wormholes and black hole microstates in AdS/CFT
Jordan Cotler, Kristan Jensen
It has long been known that the coarse-grained approximation to the black hole density of states can be computed using classical Euclidean gravity. In this work we argue for anothe…
Gravitational Constrained Instantons
Jordan Cotler, Kristan Jensen
We find constrained instantons in Einstein gravity with and without a cosmological constant. These configurations are not saddle points of the Einstein-Hilbert action, yet they con…
AdS wormholes from a modular bootstrap
Jordan Cotler, Kristan Jensen
In recent work we computed the path integral of three-dimensional gravity with negative cosmological constant on spaces which are topologically a torus times an interval. Here we e…
AdS gravity and random CFT
Jordan Cotler, Kristan Jensen
We compute the path integral of three-dimensional gravity with negative cosmological constant on spaces which are topologically a torus times an interval. These are Euclidean wormh…
Emergent unitarity in de Sitter from matrix integrals
Jordan Cotler, Kristan Jensen
We study Jackiw-Teitelboim gravity with positive cosmological constant as a model for de Sitter quantum gravity. We focus on the quantum mechanics of the model at past and future i…
Spectral decoupling in many-body quantum chaos
Jordan Cotler, Nicholas Hunter-Jones
We argue that in a large class of disordered quantum many-body systems, the late time dynamics of time-dependent correlation functions is captured by random matrix theory, specific…
Low-dimensional de Sitter quantum gravity
Jordan Cotler, Kristan Jensen, Alexander Maloney
We study aspects of Jackiw-Teitelboim (JT) quantum gravity in two-dimensional nearly de Sitter (dS) spacetime, as well as pure de Sitter quantum gravity in three dimensions. These…
Quantum Causal Influence
Jordan Cotler, Xizhi Han, Xiao-Liang Qi +1
We introduce a framework to study the emergence of time and causal structure in quantum many-body systems. In doing so, we consider quantum states which encode spacetime dynamics,…