У оквиру семинара Центра за изучавање комплексних система Института за физику у Београду, у четвртак, 14. новембра 2024. године у 14 часова, у читаоници библиотеке „др Драган Поповић“, Милена Симић (Макс Планк институт за физику комплексних система, Дрезден, Немачка) одржаће предавање:
Non-adiabatic couplings as a stabilization mechanism in long-range Rydberg molecules
САЖЕТАК:
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.