Exact Factorization for Multi-dimensional Non-adiabatic Dynamics

17 Mar 2024
Job Information

Organisation/Company

Université de Lorraine, Metz

Research Field

Physics
Chemistry

Researcher Profile

Recognised Researcher (R2)
Leading Researcher (R4)
First Stage Researcher (R1)
Established Researcher (R3)

Country

France

Application Deadline

14 May 2024 – 22:00 (UTC)

Type of Contract

Temporary

Job Status

Full-time

Offer Starting Date

1 Oct 2024

Is the job funded through the EU Research Framework Programme?

Not funded by an EU programme

Is the Job related to staff position within a Research Infrastructure?

No

Offer Description

Scientific context and research program   //   In molecular physics, non-adiabatic dynamic processes involving excited states are of great interest in different fields, such as biology, electronics, and optically-active material science. Due to their inherent complexity, the thorough understanding of the quantum effects related to these phenomena is very challenging. Available numerical tools for modeling these processes make use of approximate methods, such as the surface-hopping approach, which enable the treatment of multidimensional systems but inherently involve approximations that limit the interpretation of quantum phenomena.

To overcome these limitations, the hybrid quantum-classical approach called Generalised-Coupled Trajectory-Mixed Quantum Classical (G-CT-MQC) based on exact factorization theory emerges as a promising lead. Currently, the application of the G-CT-MQC algorithm is limited to model systems with one or two dimensions due to a high computational cost. In this research project, we aim to develop and extend the application of G-CT-MQC to study the non-dynamics dynamic properties of the excited states in multidimensional molecular systems. To validate our methodological developments, we plan to apply the G CT-MQC algorithm to the collision reaction between ethylene (C2H4) and the oxygen atom O(3P), an important reaction in the context of combustion and atmospheric chemistry. The results will serve as an accurate reference to guide the improvement of approximations for the surface-hopping methods, aiming to refine the algorithm while preserving the computational efficiency.

This research project will enhance our understanding of the fundamental mechanisms governing chemical reactivity at the molecular scale, paving the way for innovative applications in various fields such as new materials design, optimization of industrial processes, and environmental protection. Situated at the interface of molecular physics and quantum chemistry, and relying on mathematical and computational tools, this ambitious research project is intended for a motivated candidate with a background in physics or quantum chemistry.

Funding category: Contrat doctoral
3 years – full time
PHD title: Physics
PHD Country: France

Requirements
Specific Requirements

Motivated candidate with a background in physics or quantum chemistry.

Required Skills:

– Master degree in theoretical chemistry, physics, or equivalent.

– Expertise in Fortran and Python programming languages.

– Good level in English language

Expertise in electronic structure calculation and non-adiabatic dynamics, as well as experience of working in a UNIX/Linux environment, will be appreciated

Additional Information
Work Location(s)

Number of offers available

1

Company/Institute

Université de Lorraine, Metz

Country

France

Geofield

Where to apply

Website

https://www.abg.asso.fr/fr/candidatOffres/show/id_offre/121349

STATUS: EXPIRED