Mainz 2017 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 40: Poster: Quantum Optics and Photonics II
Q 40.11: Poster
Mittwoch, 8. März 2017, 17:00–19:00, P OG2
Spin- and density-resolved microscopy of antiferromagnetic correlations in Fermi-Hubbard chains — •Joannis Koepsell1, Timon Hilker1, Guillaume Salomon1, Martin Boll1, Ahmed Omran1, Jayadev Vijayan1, Immanuel Bloch1,2, and Christian Gross1 — 1Max-Planck-Institute für Quantenoptik — 2Fakultät für Physik, Ludwig-Maximilians-Universität, München
Important aspects of the puzzling physics of the doped Hubbard model are believed to be rooted in the complex interplay between magnetism in the spin sector and correlations in the density sector. A quantum simulator that at the same time resolves the spin and density degrees of freedom and thus allows to measure correlations between them would be a perfect tool to explore these systems. Here we report on details of the realization of such a quantum gas microscope for fermionic Lithium. Furthermore, we summarize recent measurements revealing antiferromagnetic correlations in 1d Hubbard chains. By a comparison to Quantum-Monte-Carlo simulations we infered an entropy below ln(2) at which longer ranged correlations emerge. Additionally, we report on ongoing measurements of spin-density correlations in doped systems and our progress with two dimensional systems.