Quantum-gas microscope for fermionic atoms

Lawrence W. Cheuk, Matthew A. Nichols, Melih Okan, Thomas Gersdorf, Vinay V. Ramasesh, Waseem S. Bakr, Thomas Lompe, Martin W. Zwierlein

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Abstract

We realize a quantum-gas microscope for fermionic K40 atoms trapped in an optical lattice, which allows one to probe strongly correlated fermions at the single-atom level. We combine 3D Raman sideband cooling with high-resolution optics to simultaneously cool and image individual atoms with single-lattice-site resolution at a detection fidelity above 95%. The imaging process leaves the atoms predominantly in the 3D motional ground state of their respective lattice sites, inviting the implementation of a Maxwell's demon to assemble low-entropy many-body states. Single-site-resolved imaging of fermions enables the direct observation of magnetic order, time-resolved measurements of the spread of particle correlations, and the detection of many-fermion entanglement.

Original languageEnglish (US)
Article number193001
JournalPhysical review letters
Volume114
Issue number19
DOIs
StatePublished - May 13 2015
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Cheuk, L. W., Nichols, M. A., Okan, M., Gersdorf, T., Ramasesh, V. V., Bakr, W. S., Lompe, T., & Zwierlein, M. W. (2015). Quantum-gas microscope for fermionic atoms. Physical review letters, 114(19), [193001]. https://doi.org/10.1103/PhysRevLett.114.193001