SAMOP 2023 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 33: Quantum Gases: Bosons IV

Q 33.6: Vortrag

Mittwoch, 8. März 2023, 15:45–16:00, A320

A dipolar quantum gas microscope — •Ralf Klemt¹, Kevin Ng¹, Jens Hertkorn¹, Paul Uerlings¹, Akshay Shankar², Lucas Lavoine¹, Tim Langen¹, and Tilman Pfau¹ — ¹5. Physikalisches Institut and Center for Integrated Quantum Science and Technology IQST, Universität Stuttgart — ²Indian Institute of Science Education and Research, Mohali

In this talk, we present experimental and theoretical efforts towards studying dipolar Bose- and Fermi-Hubbard models using ultracold dipolar quantum gases in optical lattices. In addition to Hubbard models which only incorporate short-range interaction, the anisotropic dipolar interactions found in dysprosium, allow us to introduce (next-) nearest neighbor interactions. This opens up the possibility to explore a wide range of problems ranging from quantum magnetism and lattice spin models to topological matter. We will discuss examples of quantum phases both with local and non-local order and lay out a path towards realizing and observing them experimentally.

We will present our new setup, which is designed to combine the single-site resolution of a quantum gas microscope with the long-range and anisotropic interactions found in lanthanides. We will use fermionic and bosonic isotopes of dysprosium trapped in an UV optical lattice with a lattice spacing of 180 nm. The short lattice spacing will significantly enhance the dipolar nearest neighbor coupling to be about 200 Hz (10 nK). We will combine this setup with a single-particle, spin- and energy resolved super-resolution imaging technique, in order to be able to extract almost arbitrary density correlation functions.