You are cordially invited to the SCL seminar of the Center for the Study of Complex Systems, which will be held on Thursday, 14 November 2024 at 14:00 in the library reading room “Dr. Dragan Popović" of the Institute of Physics Belgrade. The talk entitled

Non-adiabatic couplings as a stabilization mechanism in long-range Rydberg molecules

will be given by Milena Simić (Max Planck Institute for the Physics of Complex Systems, Dresden, Germany). The abstract of the talk:

Quantum reflection is a phenomenon where a quantum particle reflects off of a step-like potential remaining bound. This behavior is exhibited in ultralong-range Rydberg molecules, which abound with almost step-like drops at points where potential curves narrowly avoid each other. Despite such a potential landscape, there are numerous resonance states bound by quantum reflection, within Born-Oppenheimer approximation. However, when potential curves come close to each other, they become coupled, leading to significant non-adiabatic couplings. Their influence on molecular binding has been only recently studied in our work, and will be the main focus of this talk, which will start with a broad introduction to the Rydberg atoms and molecules.