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Q: Fachverband Quantenoptik und Photonik

Q 68: Quantum Gases: Fermions III

Q 68.4: Vortrag

Freitag, 4. März 2016, 15:15–15:30, e001

Local probing of the equation of states in two-dimensional Fermi Hubbard Model — •Chun Fai Chan¹, Eugenio Cocchi^1,2, Luke Miller^1,2, Jan Henning Drewes¹, Daniel Pertot¹, Ferdinand Brennecke¹, and Michael Köhl^1,2 — ¹Physikalisches Institut, Universität Bonn, Wegelerstrasse 8, 53115 Bonn, Germany — ²Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom

Ultracold fermions in optical lattices are promising candidate for simulating the Hubbard model. The Hubbard model contains various interesting phases, such as the Mott insulating phase, spin-ordered states and possibly d-wave superconductivity. Using 40K atoms in optical lattices, we perform high-resolution imaging and radio-frequency spectroscopy to probe the two-dimensional Hubbard model. Here we report on the experimental determination of the equation of state, which enables us to fully characterize the thermodynamics of the Hubbard model in the charge sector.