Erlangen 2022 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 45: Ultracold Atoms and Molecules I (joint session Q/A)

Q 45.5: Talk

Thursday, March 17, 2022, 11:30–11:45, Q-H10

Few-Body Physics in Spherical Shell Traps — •C. Moritz Carmesin¹ and Maxim A. Efremov^2,1 — ¹Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQ^ST), Universität Ulm, 89069 Ulm, Germany — ²Institute of Quantum Technologies, German Aerospace Center (DLR), 89081 Ulm, Germany

With the recent progress in cold atom physics in microgravity [1–5] it is feasible to trap atoms in spherical shell-shaped traps. We start our analysis from exploring both bound and scattering states of two identical particles in spherical shell traps. Due to the non-separability of the center-of-mass and relative motions, we have solved the 6-dimensional Schrödinger equation numerically. Moreover, we have derived analytical models for the effective interaction between the particles for small and large shell radii, where the latter features quasi-two-dimensional dynamics in curved space.

[1] D. C. Aveline et al., Nature 582,193 (2020).
[2] K. Frye et al., EPJ Quantum Technol. 8, 1 (2021).
[3] N. Lundblad et al., npj Microgravity 5, 30 (2019).
[4] R. A. Carollo et al., arXiv:2108.05880
[5] A. Wolf et al., arXiv:2110.15247