Freiburg 2024 – scientific programme

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A: Fachverband Atomphysik

A 28: Ultra-cold Atoms, Ions and BEC II (joint session A/Q)

A 28.2: Talk

Thursday, March 14, 2024, 11:15–11:30, HS 1098

Dysprosium Quantum Gas Microscope — •Kevin Ng, Fiona Hellstern, Jens Hertkorn, Paul Uerlings, Lucas Lavoine, Ralf Klemt, Tim Langen, and Tilman Pfau — 5. Physikalisches Institut and Center for Integrated Quantum Science and Technology IQST, Universität Stuttgart

With quantum gas microscopy providing access to study particle interactions and correlations on the microscopic scale, engineering analogues to simulate and understand solid state systems with a high degree of control has become possible. Although single atoms can be trapped and imaged in optical lattices, most existing quantum gas microscopes trap and image atoms using light with relatively long wavelengths, and where only short-range contact interactions exist between atoms. Here, we present our progress toward building a quantum gas microscope with dysprosium atoms that will be trapped in lattices using ultraviolet (∼ 360nm) light, where enhanced anisotropic dipolar interactions compete with tunable inter-site particle tunnelling and on-site interactions. Owing to the enhanced dipolar interaction strength between dysprosium atoms in optical lattices of such a short wavelength, our quantum gas microscope opens up the possibility to observe novel phases of matter in a variety of lattice geometries. Our planned experimental setup and initial steps toward characterising the trapping properties of dysprosium at 360nm will be presented.

Keywords: dipolar; dysprosium; microscope; quantum; simulation