Resolved-sideband Micromotion Sensing in Yb$^{+}$ on the 935 nm Repump Transition

• URL: http://arxiv.org/abs/2111.11504v1
• Date: Mon, 22 Nov 2021 20:03:35 GMT
• Title: Resolved-sideband Micromotion Sensing in Yb$^{+}$ on the 935 nm Repump Transition
• Authors: C. J. B. Goham, J. W. Britton
• Abstract summary: A host of well-established techniques are routinely used to sense (and null) this excess motion in applications ranging from quantum computing to atomic clocks. In this manuscript we demonstrate the use of this transition to make resolved-sideband measurements of 3D micromotion in $172$Yb$+$ and $171$Yb$+$ ions.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Ions displaced from the potential minimum in a RF Paul trap exhibit excess micromotion. A host of well-established techniques are routinely used to sense (and null) this excess motion in applications ranging from quantum computing to atomic clocks. The rich atomic structure of the heavy ion Yb$^{+}$ includes low-lying $^{2}\text{D}_{3/2}$ states that must be repumped to permit Doppler cooling, typically using a 935 nm laser coupled to the $^{3}\text{D}[3/2]_{1/2}$ states. In this manuscript we demonstrate the use of this transition to make resolved-sideband measurements of 3D micromotion in $^{172}$Yb$^{+}$ and $^{171}$Yb$^{+}$ ions. Relative to other sensing techniques our approach has very low technical overhead and is distinctively compatible with surface-electrode ion traps.

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