activity
20082026
most citedOn the rate of convergence for the mean field approximation of many-body quantum dynamics

44 citations · 132 across the 21 of their papers we have counts for

collaborators

23 papers

math.AP2026

The Schrödinger-Klein-Gordon System Revisited

Christophe Cheverry, Zied Ammari

We introduce a microlocal formulation of the Schr{ö}dinger-Klein-Gordon system describing the interaction between a non-relativistic quantum particle and a Klein-Gordon field throu…

math-ph2026

Higher-Order Approximation of Coherent State Dynamics in Self-Interacting Quantum Field Theories

Zied Ammari, Julien Malartre, Maher Zerzeri

We study the propagation of coherent states in self-interacting bosonic quantum field theories in the semi-classical (mean-field) regime. Relying on Hepp's method and a detailed an…

math-ph2025

Semiclassical limit of entropies and free energies

Zied Ammari, Michele Correggi, Marco Falconi +1

Entropy and free energy are central concepts in both statistical physics and information theory, with quantum and classical facets. In mathematics these concepts appear quite often…

math.AP2024

Gibbs measures as local equilibrium KMS states for focusing nonlinear Schrödinger equations

Zied Ammari, Andrew Rout, Vedran Sohinger

In this paper, we are concerned with the study of statistical equilibria for focusing nonlinear Schrödinger and Hartree equations on the d-dimensional torus when d=1,2,3. Due to th…

math-ph2024

Expansion of the Many-body Quantum Gibbs State of the Bose-Hubbard Model on a Finite Graph

Zied Ammari, Shahnaz Farhat, Sören Petrat

We consider the many-body quantum Gibbs state for the Bose-Hubbard model on a finite graph at positive temperature. We scale the interaction with the inverse temperature, correspon…

math.AP2023

Almost sure existence of global solutions for general initial value problems

Zied Ammari, Shahnaz Farhat, Vedran Sohinger

This article is concerned with the almost sure existence of global solutions for initial value problems of the form on separable dual Banach spaces. We prove…