Electron–Nuclear Dynamics of Inter-Particle Coulombic Electron Capture (ICEC).

Double Degree Program (UNAM – Sorbonne University)

Applications are invited for a PhD position focused on the theoretical and computational study of Electron–Nuclear Dynamics (END) in Inter-particle Coulombic Electron Capture (ICEC). This project will be carried out as a joint double-degree program between the National Autonomous University of Mexico (UNAM) and Sorbonne University (France), offering an opportunity for international training in cutting-edge atomic and molecular physics.

Project Overview

Inter-particle Coulombic electron capture (ICEC) is an emerging fundamental process in which an atom or molecule captures an electron through long-range Coulombic interactions with a neighboring species, leading to correlated electronic and nuclear dynamics. Understanding ICEC is crucial for advancing knowledge in areas such as radiation damage, plasma physics, and astrochemistry.

This PhD project aims to:

•  Develop and apply state-of-the-art theoretical END framework to describe coupled electron–nuclear motion during ICEC processes.

•  Perform advanced numerical simulations using quantum dynamics methods.

• Investigate the role of environment, inter-particle distance, and nuclear motion in electron capture efficiency.

•    Contribute to the interpretation of experimental results and propose new measurable signatures.

Program Structure
The selected candidate will be enrolled in a double-degree PhD program, spending research periods at both partner institutions:

•  UNAM (Mexico)

•  Sorbonne University (France)

Supervision will be provided jointly by the two leading researchers from both institutions. The candidate will benefit from access to high-performance computing resources and international collaboration networks.

Candidate Profile
Applicants should meet the following criteria:

•  Master’s degree (or equivalent) in Physics, Chemistry, or a closely related field

•  Strong background in quantum mechanics and computational methods

•  Experience with scientific programming (e.g., Python, C/C++, Fortran)

•  Interest in theoretical atomic/molecular physics

•  Proficiency in English (knowledge of French or Spanish is an asset but not mandatory)

Funding and Benefits

•  Full PhD scholarship covering tuition and living expenses

•  Mobility support for research stays in Mexico and France

•  Access to advanced computational facilities

•  Opportunity to obtain two doctoral degrees from internationally recognized institutions

Application Process
Interested candidates should submit:

•   Curriculum vitae

•  Statement of purpose outlining research interests and motivation

•  Academic transcripts

•  Contact information for at least two references

Application Deadline: 10.04.26
Start Date: 01.10.26

Applications and inquiries should be sent to: Nicolas Sisourat (Nicolas.Sisourat@sorbonne-universite.fr) and Remigio Cabrera-Trujillo (trujillo@icf.unam.mx)

This is a unique opportunity to engage in high-impact fundamental research within a dynamic international environment. Highly motivated candidates with a passion for quantum dynamics and interdisciplinary collaboration are strongly encouraged to apply.