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arXiv · 1504.04397

Site-resolved Imaging of Fermionic Lithium-6 in an Optical Lattice

Maxwell F. Parsons·Florian Huber·Anton Mazurenko·Christie S. Chiu·Widagdo Setiawan·Katherine Wooley-Brown·Sebastian Blatt·Markus Greiner
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Abstract

We demonstrate site-resolved imaging of individual fermionic lithium-6 atoms in a 2D optical lattice. To preserve the density distribution during fluorescence imaging, we simultaneously cool the atoms with 3D Raman sideband cooling. This laser cooling technique, demonstrated here for the first time for lithium-6 atoms, also provides a pathway to rapid low-entropy filling of an optical lattice. We are able to determine the occupation of individual lattice sites with a fidelity >95%, enabling direct, local measurement of particle correlations in Fermi lattice systems. This ability will be instrumental for creating and investigating low-temperature phases of the Fermi-Hubbard model, including antiferromagnets and d-wave superfluidity.

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Maxwell F. Parsons, Florian Huber, Anton Mazurenko, Christie S. Chiu, Widagdo Setiawan, Katherine Wooley-Brown, Sebastian Blatt, Markus Greiner. 2015-04-16. Site-resolved Imaging of Fermionic Lithium-6 in an Optical Lattice. https://doi.org/10.1103/physrevlett.114.213002

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