activity
20082026
most citedMaximal speed for macroscopic particle transport in the Bose-Hubbard model

34 citations · 172 across the 29 of their papers we have counts for

collaborators

34 papers

math.AP2026

Quantitative uniform resolvent estimates

Piero D'Ancona, Jérémy Faupin, David Krejcirik

We derive quantitative uniform resolvent estimates for Schrödinger operators on the half-line with inverse-square potentials, which provide a sharp behaviour in the limit of large…

math.AP2025

Global weak solutions to the Quantum Navier-Stokes system in the whole space with a confining external potential

Jérémy Faupin, Ingrid Lacroix-Violet, Julien Lequeurre

We consider a dissipative quantum fluid on the whole space () confined by an external harmonic potential. The dynamics of the quantum fluid is described by…

math-ph2025

Levinson's theorem for dissipative systems, or how to count the asymptotically disappearing states

A. Alexander, J. Faupin, S. Richard

We consider dissipative Schroedinger operators of the form on , with a complex, bounded and decaying potential with a non-positive imaginary pa…

quant-ph2023★ 1 cited

Light cones for open quantum systems

Sébastien Breteaux, Jérémy Faupin, Marius Lemm +3

We consider Markovian open quantum dynamics (MOQD). We show that, up to small-probability tails, the supports of quantum states evolving under such dynamics propagate with finite s…

math.AP2022

Quasi-classical Ground States. II. Standard Model of Non-relativistic QED

Sébastien Breteaux, Jérémy Faupin, Jimmy Payet

We consider a non-relativistic electron bound by an external potential and coupled to the quantized electromagnetic field in the standard model of non-relativistic QED. We compute…

quant-ph2022★ 9 cited

Maximal Speed of Propagation in Open Quantum Systems

Sébastien Breteaux, Jérémy Faupin, Marius Lemm +1

We prove a maximal velocity bound for the dynamics of Markovian open quantum systems. The dynamics are described by one-parameter semi-groups of quantum channels satisfying the von…

math.AP2022

Quasi-classical Ground States. I. Linearly Coupled Pauli-Fierz Hamiltonians

Sébastien Breteaux, Jérémy Faupin, Jimmy Payet

We consider a spinless, non-relativistic particle bound by an external potential and linearly coupled to a quantized radiation field. The energy of product state…

math.SP2022

Spectral decomposition of some non-self-adjoint operators

Jérémy Faupin, Nicolas Frantz

We consider non-self-adjoint operators in Hilbert spaces of the form , where is self-adjoint, is bounded and is a metric operator, bounded and relative…

math.FA2021

Perturbed Bessel operators

Jan Dereziński, Jérémy Faupin

We study perturbed Bessel operators on , where and is a complex locally integra…

quant-ph2021★ 34 cited

Maximal speed for macroscopic particle transport in the Bose-Hubbard model

Jérémy Faupin, Marius Lemm, Israel Michael Sigal

The Lieb-Robinson bound asserts the existence of a maximal propagation speed for the quantum dynamics of lattice spin systems. Such general bounds are not available for most bosoni…

math-ph2021★ 31 cited

On Lieb-Robinson bounds for the Bose-Hubbard model

Jérémy Faupin, Marius Lemm, Israel Michael Sigal

We consider the dynamics of the Bose-Hubbard model on general lattices and prove a Lieb-Robinson bound for observables whose supports are separated by an initially almost particle-…

math-ph2020★ 3 cited

Generic nature of asymptotic completeness in dissipative scattering theory

Jérémy Faupin

We review recent results obtained in the scattering theory of dissipative quantum systems representing the long-time evolution of a system interacting with another system …

math-ph2020

On radial Schroedinger operators with a Coulomb potential: General boundary conditions

J. Derezinski, J. Faupin, Q. N. Nguyen +1

This paper presents the spectral analysis of 1-dimensional Schroedinger operator on the half-line whose potential is a linear combination of the Coulomb term 1/r and the centrifuga…

math-ph2018★ 3 cited

Hamiltonian models of interacting fermion fields in Quantum Field Theory

Benjamin Alvarez, Jérémy Faupin, Jean-Claude Guillot

We consider hamiltonian models representing an arbitrary number of spin fermion quantum fields interacting through arbitrary processes of creation or annihilation of particle…

math-ph2018

Scattering Theory for Mathematical Models of the Weak Interaction

Benjamin Alvarez, Jérémy Faupin

We consider mathematical models of the weak decay of the vector bosons into leptons. The free quantum field hamiltonian is perturbed by an interaction term from the stand…

math-ph2018

One-Boson Scattering Processes in the massive Spin-Boson Model

Miguel Ballesteros, Dirk-André Deckert, Jérémy Faupin +1

The Spin-Boson model describes a two-level quantum system that interacts with a second-quantized boson scalar field. Recently the relation between the integral kernel of the scatte…

math.SP2018

Scattering matrices for dissipative quantum systems

Jérémy Faupin, Francois Nicoleau

We consider a quantum system S interacting with another system S and susceptible of being absorbed by S. The effective, dissipative dynamics of S is supposed to be generated by an…

math-ph2017

Asymptotic completeness in dissipative scattering theory

Jérémy Faupin, Jürg Fröhlich

We consider an abstract pseudo-Hamiltonian for the nuclear optical model, given by a dissipative operator of the form , where is self-adjoint and…

math-ph2016★ 1 cited

Local Decay for Weak Interactions with Massless Particles

Jean-Marie Barbaroux, Jérémy Faupin, Jean-Claude Guillot

We consider a mathematical model for the weak decay of the intermediate boson into neutrinos and antineutrinos. We prove that the total Hamiltonian has a unique ground state…

math-ph2016★ 16 cited

Scattering theory for Lindblad master equations

Marco Falconi, Jérémy Faupin, Jürg Fröhlich +1

We study scattering theory for a quantum-mechanical system consisting of a particle scattered off a dynamical target that occupies a compact region in position space. After taking…

math-ph2015

Spectral Analysis of a Model for Quantum Friction

Stephan De Bièvre, Jérémy Faupin, Baptiste Schubnel

An otherwise free classical particle moving through an extended spatially homogeneous medium with which it may exchange energy and momentum will undergo a frictional drag force in…

math-ph2014★ 4 cited

On the probabilistic nature of quantum mechanics and the notion of closed systems

Jérémy Faupin, Jürg Fröhlich, Baptiste Schubnel

The notion of "closed systems" in Quantum Mechanics is discussed. For this purpose, we study two models of a quantum-mechanical system spatially far separated from the "rest of…

math-ph2014

Spectral Theory near Thresholds for Weak Interactions with Massive Particles

Jean-Marie Barbaroux, Jérémy Faupin, Jean-Claude Guillot

We consider a Hamiltonian describing the weak decay of the massive vector boson Z0 into electrons and positrons. We show that the spectrum of the Hamiltonian is composed of a uniqu…

math-ph2014★ 7 cited

Quantum Electrodynamics of Atomic Resonances

Miguel Ballesteros, Jérémy Faupin, Jürg Fröhlich +1

A simple model of an atom interacting with the quantized electromagnetic field is studied. The atom has a finite mass , finitely many excited states and an electric dipole momen…