Raman coupling in a Fermi gas of $^6$Li atoms

ORAL

Abstract

Entangling the spin and momentum of atoms in a Fermi gas gives rise to a variety of new tools and new physical phenomena. Its realization in cold atomic systems via Raman lasers allows spin-orbit coupling and the creation of synthetic gauge fields. Spin-orbit coupling allows realizing models of topological insulators, while synthetic gauge fields offer the prospect of realizing quantum hall states. Raman coupling can also be used to probe the excitation spectrum of a Fermi gas. Raman spectroscopy provides complementary information to the widely used radio-frequency spectroscopy. It can be used to locally map the Fermi surface in a normal Fermi gas, and to directly measure the pairing gap in a strongly interacting Fermi gas. In this talk, we present progress towards Raman dressing and Raman spectroscopy in an ultracold Fermi gas of $^6$Li atoms.

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Authors

  • Lawrence Cheuk

    Department of Physics, MIT-Harvard Center for Ultracold Atoms, and Research Laboratory of Electronics, MIT, Cambridge, Massachusetts 02139, USA, Department of Physics, MIT-Harvard Center for Ultracold Atoms, and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridg

  • Ariel Sommer

    Department of Physics, MIT-Harvard Center for Ultracold Atoms, and Research Laboratory of Electronics, MIT, Cambridge, Massachusetts 02139, USA, Department of Physics, MIT-Harvard Center for Ultracold Atoms, and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridg

  • Mark Ku

    Department of Physics, MIT-Harvard Center for Ultracold Atoms, and Research Laboratory of Electronics, MIT, Cambridge, Massachusetts 02139, USA, Department of Physics, MIT-Harvard Center for Ultracold Atoms, and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridg

  • Waseem Bakr

    Massachusetts Institute of Technology, Department of Physics, MIT-Harvard Center for Ultracold Atoms, and Research Laboratory of Electronics, MIT, Cambridge, Massachusetts 02139, USA, Department of Physics, MIT-Harvard Center for Ultracold Atoms, and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridg

  • Tarik Yefsah

    Department of Physics, MIT-Harvard Center for Ultracold Atoms, and Research Laboratory of Electronics, MIT, Cambridge, Massachusetts 02139, USA, Department of Physics, MIT-Harvard Center for Ultracold Atoms, and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridg

  • Martin Zwierlein

    Massachusetts Institute of Technology, Department of Physics, MIT-Harvard Center for Ultracold Atoms, and Research Laboratory of Electronics, MIT, Cambridge, Massachusetts 02139, USA, Department of Physics, MIT-Harvard Center for Ultracold Atoms, and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridg