1. Department of Physics, University of Oregon, Eugene, Oregon 97403, USA
2. Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USA
3. Center for Quantum Science and Engineering, University of California Los Angeles, Los Angeles, California 90095, USA
4. Challenge Institute for Quantum Computation, University of California Los Angeles, Los Angeles, California 90095, USA
5. Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, Massachusetts 02420, USA
6. Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
7. Center for Ultracold Atoms, Department of Electrical Engineering and Computer Science, Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
8. Honeywell Quantum Solutions, Broomfield, Colorado 80021, USA