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arXiv · 1810.00536

Antiferromagnetic Interorbital Spin-Exchange Interaction of $^{171}$Yb

Koki Ono·Jun Kobayashi·Yoshiki Amano·Koji Sato·Yoshiro Takahashi
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Abstract

We report on the investigation of the scattering properties between the ground state $^1S_0$ and the metastable state $^3P_0$ of the fermionic isotope of $^{171}$Yb. We successfully measure the $s$-wave scattering lengths in the two-orbital collision channels as $a_{eg}^+=225(13)a_0$ and $a_{eg}^-=355(6)a_0$, using the clock transition spectroscopy in a three-dimensional optical lattice. The result shows that the interorbital spin-exchange interaction is antiferromagnetic, indicating that $^{171}$Yb atom is a promising isotope for the quantum simulation of the Kondo effect with the two-orbital system.

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Koki Ono, Jun Kobayashi, Yoshiki Amano, Koji Sato, Yoshiro Takahashi. 2019-03-13. Antiferromagnetic Interorbital Spin-Exchange Interaction of $^{171}$Yb. https://doi.org/10.1103/physreva.99.032707

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