Post-doctoral fellows: Quantum Field Theory meets Atomistic Modeling
Université du Luxembourg
Alphonse Weicker, Luxembourg
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Your Role

Two postdoctoral positions are available in the Chair for Theoretical Chemical Physics (TCP), led by Prof. Alexandre Tkatchenko in the Department of Physics and Materials Science (DPhyMS) at the University of Luxembourg (http : / / www. These positions are embedded within the FNR-CORE grant "Broadly Applicable Methods for van der Waals Interactions in Molecules and Materials".

We are looking for motivated, independent, and skilled scientists to join our group. As part of the TCP group, researchers will have ample opportunity to exchange ideas, transfer knowledge, and to pick up new expertise.

Our publications (https : / / / citations?user o2t1Pv8AAAAJ&hl en) provide perspective on our research directions.

We have two positions focused on bridging quantum field theory (QFT) and atomistic modeling :

i) "QFT Perspective on Intermolecular Interactions"

  • The quantum-mechanical theory of intermolecular interactions is well established see e.g. https : / / / Theory-Intermolecular-Forces-Anthony-Stone / dp / 0198789157;
  • Science 351, 1171 (2016) . However, much less is known about the QED and QFT effects on intermolecular interactions. This project aims to develop a practically-applicable QED / QFT approach based on quantum Drude oscillators for atomic response arXiv : 2101.

    08701 . Once accomplished, various QED / QFT effects will be studied with the aim to systematically understand their importance in the context of intermolecular interactions.

    ii) "Beyond Perturbative QFT for Atomic Polarization"

    The vacuum state in QED / QFT is typically expressed as plane waves and the effect of atoms / molecules on the vacuum state is studied perturbatively or as a boundary condition.

    This project aims to develop non-perturbative techniques for the interaction between the QED / QFT vacuum and atomic / molecular systems.

  • Examples of applications include first-principles derivation of unusual scaling laws for the electronic polarizability PRL 121, 183401 (2018);
  • arXiv : 2007.02992 or Lamb shift for molecules see e.g. https : / / / articles / s41467-020-20473-w .

    Your Profile

    The positions are open to strong applicants with backgrounds in physics, mathematics and / or a multidisciplinary background (PhD degree).

    We Offer

  • Personal workspace within the dynamic research environment of the Department of Physics and Materials Science (http : / /
  • Training opportunities in scientific and transferable skills, participation in schools, conferences and workshops
  • Fixed term employee contract of 12 months (can be extended up to 36 months)
  • An international and multi-lingual environment in one of the most enjoyable European cities (http : / /
  • A competitive salary and attractive working environment in one of the most enjoyable European cities (http : / /
  • In Short

  • Contract Type : Contrat à durée déterminée 12 Mois (possibility of extension up to 36 months)
  • Work Hours : 40.0 Heures par Semaine
  • Location : Limpertsberg / Belval
  • Foreseen starting date : September 2021
  • Internal Title : Postdoctoral researcher
  • Job Reference : UOL03987
  • Further Information

    Applications should be submitted online and include :

  • A letter of motivation
  • A detailed CV
  • At least two letters of reference
  • Early application is highly encouraged, as the applications will be processed upon reception. Please apply ONLINE formally through the HR system.

    Applications by email will not be considered.

    The University of Luxembourg embraces inclusion and diversity as key values. We are fully committed to removing any discriminatory barrier related to gender, and not only, in recruitment and career progression of our staff.

    Here’s what awaits you at the University

  • Multilingual and international character . Modern institution with a personal atmosphere. Staff coming from 90 countries.
  • Member of the University of the Greater Region (UniGR).

  • A modern and dynamic university. High-quality equipment. WiFi on campus. Close ties to the business world and to the Luxembourg labour market.
  • A unique urban site with excellent infrastructure.

  • A partner for society and industry . Cooperation with European institutions, innovative companies, the Financial Centre and with numerous non-academic partners such as ministries, local governments, associations, NGOs
  • Find out more about the University
  • Addresses, maps & routes to the various sites of the University
  • Further information

    For more information and applications contact : Prof. Dr. Alexandre Tkatchenko (alexandre.tkatchenko

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