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Q: Fachverband Quantenoptik und Photonik

Q 26: Quantum Gases (Fermions)

Q 26.3: Talk

Wednesday, March 16, 2022, 11:00–11:15, Q-H10

Mesoscopic Fermion systems in rotating traps — •Philipp Lunt, Paul Hill, Diana Körner, Johannes Reiter, Selim Jochim, and Philipp Preiss — Physikalisches Institut, Im Neuenheimer Feld 226, 69120 Heidelberg

The equivalence of charged particles in external magnetic fields and neutral atoms in rapidly rotating traps opens up new avenues to study quantum hall physics with ultracold atomic gases.

In order to access the microscopic level of strongly correlated states we build on our previously established experimental methods - the deterministic preparation of ultracold ⁶Li few Fermion systems in low dimensions [1,2], as well as local observation of their correlation and entanglement properties on the single atom level [3].

Here, we present current experimental progress towards adiabatic preparation of deterministic mesoscopic fermion systems in rapidly rotating optical potentials. We showcase the optical setup, in particular the generation of interfering a Gaussian and Laguerre-Gaussian mode to achieve rotation [4]. Moreover, we show first experimental results of the new setup.

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