Bonn 2025 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 11: Poster – Cold Atoms and Molecules, Matter Waves (joint session Q/A/MO)
A 11.2: Poster
Dienstag, 11. März 2025, 14:00–16:00, Tent
Chiral Van der Waals interactions between Rydberg atoms — •Fabian Spallek1, Stefan Aull1, Steffen M. Gießen2, Kilian Singer1, Robert Berger2, Akbar Salam3, and Stefan Yoshi Buhmann1 — 1University Kassel, Germany — 2Phillips-University Marburg, Germany — 3Wake Forest University, USA
We study the Van der Waals potential between two atoms prepared in chiral superpositions of electronic Rydberg states. By harnessing external electric and magnetic fields, one can induce chiral asymmetry in the Rydberg states, which in turn gives rise to a chiral component in the near-field Van der Waals potential. This chiral component emerges from the interplay of electric and magnetic dipole-dipole interactions and contributes to the overall Van der Waals potential in addition to the conventional electric dispersion interaction. We derive effective potentials by performing various orientational averages and identify specific chiral Rydberg states that significantly enhance chiral the discriminatory component. These states offer a promising platform for realizing strong chiral interactions between Rydberg atoms, potentially enabling novel applications in quantum control and sensing.
Keywords: Chirality; Van der Waals potential; Rydberg atoms