The 27th International Conference on Atomic Physics

Ytterbium nuclear-spin qubits in an optical tweezer array

21 Jul 2022, 17:00

1h 30m

Hart House (Hart House)

Poster presentation Degenerate gases, many-body physics, and quantum simulation Poster session

Speaker

Alec Jenkins (JILA, University of Colorado and National Institute of Standards and Technology, and Department of Physics, University of Colorado, Boulder)

Description

Optical tweezer arrays of Alkaline earth-like atoms are promising for applications in quantum information and metrology. Here, we describe a tweezer platform for trapping and manipulating arrays of $^{171}$Yb atoms [1]. We demonstrate favorable qubit properties of the nuclear spin $I=1/2$, including seconds-scale coherence times and sub-microsecond single-qubit gates. We further show that single $^{171}$Yb atoms can be loaded with $>90$% efficiency into each tweezer, and we employ Raman sideband cooling to prepare atoms in the motional ground states of the tweezers. Lastly, we present recent progress, utilizing $^3$P$_0$ clock and Rydberg state control, towards the realization of mid-circuit measurement and two-qubit Rydberg gates.

[1] Jenkins, A., Lis, J. W., Senoo, A., McGrew, W. F., and Kaufman, A. M. (2021). Ytterbium nuclear-spin qubits in an optical tweezer array. arXiV:2112.06732