Researcher Publishes Comprehensive Study on Atomic Structure and Molecular Interactions in Ultracold Systems
Maxence Lepers from the University of Burgundy has published a habilitation thesis on arXiv covering atomic structure calculations and long-range interactions in ultracold gases and doped solids. The work synthesizes research conducted since his 2009 PhD, focusing on neutral and trivalent lanthanides, alkali-metal atoms, and diatomic molecules. The research contributes to understanding ultralow-temperature phenomena relevant to quantum gases and materials science.
Physicist Maxence Lepers has made public a 188-page habilitation thesis—a comprehensive research document required in some European academic systems—detailing his work on atomic and molecular physics. The manuscript is divided into two main sections: the first addresses atomic-structure calculations involving neutral and trivalent lanthanides in the contexts of ultracold gases and rare-earth doped solids, while the second examines long-range interactions in ultracold gases containing alkali-metal atoms, diatomic molecules, and lanthanide atoms. The detailed characterization of long-range interactions is designed to elucidate ultralow-temperature phenomena such as photoassociation and collisional shielding. The work spans multiple physics subfields including quantum gases, atomic physics, chemical physics, optics, and quantum physics. The document was submitted to arXiv in November 2025 with a final revision in June 2026.
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- arXiv physicsCenter
Structure and interactions of atoms and diatomic molecules: from ultracold gases to doped solids
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