556 citations · 3.3k across the 66 of their papers we have counts for
70 papers
Emergent classicality and wavefunction branching in an isolated quantum many-body system
Saúl Pilatowsky-Cameo, Jordan Cotler, Daniel Ranard +1
Decoherence in quantum systems is conventionally modeled as the effect of interactions with an external environment. However, such a prescription excludes isolated many-body system…
Quantum Chaos and Quantum Optimal Transport
Jordan Cotler, Felipe Hernández
Chaos in classical systems can be characterized by Lyapunov exponents that measure the exponential divergence of nearby trajectories, but directly extending this framework to quant…
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…
Quantum Probe Tomography
Sitan Chen, Jordan Cotler, Hsin-Yuan Huang
Characterizing quantum many-body systems is a fundamental problem across physics, chemistry, and materials science. While significant progress has been made, many existing Hamilton…
An Egorov Theorem for Wasserstein Distances
Jordan Cotler, Felipe Hernández
We prove a new version of Egorov's theorem formulated in the Schrödinger picture of quantum mechanics, using the -Wasserstein metric applied to the Husimi functions of quantum s…
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…
Computational Dynamical Systems
Jordan Cotler, Semon Rezchikov
We study the computational complexity theory of smooth, finite-dimensional dynamical systems. Building off of previous work, we give definitions for what it means for a smooth dyna…
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…
Emergent Holographic Forces from Tensor Networks and Criticality
Rahul Sahay, Mikhail D. Lukin, Jordan Cotler
The AdS/CFT correspondence stipulates a duality between conformal field theories and certain theories of quantum gravity in one higher spatial dimension. However, probing this conj…
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…
Analyzing Populations of Neural Networks via Dynamical Model Embedding
Jordan Cotler, Kai Sheng Tai, Felipe Hernández +2
A core challenge in the interpretation of deep neural networks is identifying commonalities between the underlying algorithms implemented by distinct networks trained for the same…
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…
Hardware-efficient learning of quantum many-body states
Katherine Van Kirk, Jordan Cotler, Hsin-Yuan Huang +1
Efficient characterization of highly entangled multi-particle systems is an outstanding challenge in quantum science. Recent developments have shown that a modest number of randomi…
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…
The Complexity of NISQ
Sitan Chen, Jordan Cotler, Hsin-Yuan Huang +1
The recent proliferation of NISQ devices has made it imperative to understand their computational power. In this work, we define and study the complexity class , wh…
Information-theoretic Hardness of Out-of-time-order Correlators
Jordan Cotler, Thomas Schuster, Masoud Mohseni
We establish that there are properties of quantum many-body dynamics which are efficiently learnable if we are given access to out-of-time-order correlators (OTOCs), but which requ…
Learning quantum systems via out-of-time-order correlators
Thomas Schuster, Murphy Niu, Jordan Cotler +3
Learning the properties of dynamical quantum systems underlies applications ranging from nuclear magnetic resonance spectroscopy to quantum device characterization. A central chall…