activity
20172026
most citedOn the Trotter Error in Many-body Quantum Dynamics with Coulomb Potentials

2 citations · 6 across the 15 of their papers we have counts for

collaborators

16 papers

math.AP2026

Scattering in spacetime cones for the nonlinear Schrödinger equation

Andrew Hassell, Qiuye Jia, Xiaoxu Wu

We consider the nonlinear Schrödinger equation on , with a class of `mixed' nonlinearities that admit soliton solutions. We are interested in the long-time behavi…

math.AP2026

Long-range scattering

Avy Soffer, Gavin Stewart, Xiaoxu Wu

We study the scattering problem for a long range potential, which is time dependent. We prove the existence and completeness of the scattering wave operators, and find some propert…

quant-ph2026

Trotterization with Many-body Coulomb Interactions: Convergence for General Initial Conditions and State-Dependent Improvements

Di Fang, Xiaoxu Wu

Efficiently simulating many-body quantum systems with Coulomb interactions is a fundamental question in quantum physics, quantum chemistry, and quantum computing, yet it presents u…

math.AP2026

Local-in-Time Existence of solutions to the Gravity Water Wave Kinetic Equation

Yulin Pan, Xiaoxu Wu

In this paper, we study the Cauchy problem for the four-wave kinetic equation describing the weak turbulence of gravity water waves. The mathematical challenges of this analysis st…

quant-ph2025★ 2 cited

On the Trotter Error in Many-body Quantum Dynamics with Coulomb Potentials

Di Fang, Xiaoxu Wu, Avy Soffer

Efficient simulation of many-body quantum systems is central to advances in physics, chemistry, and quantum computing, with a key question being whether the simulation cost scales…

math.AP2024

Decomposition of global solutions for a class of nonlinear wave equations

Georgios Mavrogiannis, Avy Soffer, Xiaoxu Wu

In the present paper we consider global solutions of a class of non-linear wave equations of the form \begin{equation*} \Box u= N(x,t,u)u, \end{equation*} where the nonlinearity~$…

math.AP2023

The three-quasi-particle scattering problem: asymptotic completeness for short-range systems

Avy Soffer, Xiaoxu Wu

We develop an approach to scattering theory for generalized -body systems. In particular we consider a general class of three quasi-particle systems, for which we prove Asymptot…

math.AP2023

Decomposition of global solutions of bi-laplacian Nonautonomous Schrödinger equations

Avy Soffer, Jiayan Wu, Xiaoxu Wu +1

We study the bi-Laplacian Schrödinger equation with a general interaction term, which may be linear or nonlinear and is allowed to be time-dependent. We show that global solutions…

math.AP2023

Soliton resolution for nonlinear Schrödinger type equations in the radial case

Avy Soffer, Xiaoxu Wu

We consider the Schrödinger equation with a general interaction term, which is localized in space, for radially symmetric initial data in dimensions, . The interaction…

math.AP2022

Local Decay Estimates

Avy Soffer, Xiaoxu Wu

We give a proof of Local Decay Estimates for Schrödinger type equations, which is based on the knowledge of Asymptotic Completeness (AC). This approach extends to time dependent po…

math.AP2022

On the Existence of Self-Similar solutions for some Nonlinear Schrödinger equations

Avy Soffer, Xiaoxu Wu

We construct solutions of Schrödinger equations which are asymptotically self-similar solutions as time goes to infinity. Also included are situations with two bubbles. These solut…

math.AP2022★ 1 cited

On The large Time Asymptotics of Klein-Gordon type equations with General Data

Avy Soffer, Xiaoxu Wu

We study the Klein-Gordon equation with general interaction terms, which may be linear or nonlinear, and space-time dependent. We initiate the study of such equations with large (n…

math.AP2022

On The large Time Asymptotics of Schrödinger type equations with General Data

Avy Soffer, Xiaoxu Wu

For the Schrödinger equation with a general interaction term, which may be linear or nonlinear, time dependent and including charge transfer potentials, we prove the global solutio…

math.AP2022

Boundedness of the Scattering Wave Operators of Schrödinger Dynamics -- Part 2

Avy Soffer, Xiaoxu Wu

We give another proof of the boundedness of scattering wave operators, at the low frequency part of the data. The proof also allows the control of the commutator of multiplic…

math.AP2020★ 1 cited

L^p Boundedness of the Scattering Wave Operators of Schroedinger Dynamics with Time-dependent Potentials and applications

Avy Soffer, Xiaoxu Wu

This paper establishes the boundedness of wave operators for linear Schrödinger equations in with time-dependent potentials. The approach to the proof is based…

math.ST2017★ 2 cited

Compound Poisson Point Processes, Concentration and Oracle Inequalities

Huiming Zhang, Xiaoxu Wu

This note aims at presenting several new theoretical results for the compound Poisson point process, which follows the work of Zhang \emph{et al.} [Insurance~Math.~Econom.~59(2014)…