Erlangen 2022 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 20: Quantum Gases I

Q 20.11: Poster

Dienstag, 15. März 2022, 16:30–18:30, P

Mesoscopic Fermion Systems in Rotating Traps — •Johannes Reiter, Philipp Lunt, Paul Hill, Diana Körner, Philipp Preiss, and Selim Jochim — Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany

Ultracold atomic gases in rotating traps enable the study of integer and fractional quantum Hall physics with unprecedented control of the systems′ properties [1].

In order to access the microscopic level of strongly correlated quantum Hall states we build on our previously established experimental methods - the deterministic preparation of ultracold ⁶Li few Fermion systems in low dimensions [2,3], as well as local observation of their correlation and entanglement properties on the single atom level [4].

Here, we present current experimental progress and theoretical simulations on the adiabatic preparation of mesoscopic Fermion systems in rapidly rotating optical potentials. Experimentally, we achieve rotation by interference of a Gaussian and Laguerre-Gaussian mode via a spatial light modulator. Theoretically, we utilize efficient diagonalization methods to study few strongly interacting Fermionic atoms where analytical solutions are unfeasible and statistical methods are not yet applicable. In particular, we showcase the elaborate optical setup with first experimental results and present the numerical calculations.

[1] Palm et al. New J. Phys. 22 083037 (2020) [2] Serwane et al. Science 332 (6027), 336-338 (2011) [3] Bayha et al. Nature 587, 583-587 (2020) [4] Bergschneider et al. Nat. Phys. 15, 640-644 (2019)