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arXiv · 2112.07166

Coherent control of spin tunneling in a spin-orbit coupled bosonic triple well

Yuxin Luo·Jia Yi·Wenjuan Li·Xin Xie·Xiaobing Luo·Yunrong Luo
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Abstract

We study the coherent control of spin tunneling for a spin-orbit (SO) coupled boson held in a driven triple well. Under high-frequency approximation, we analytically obtain the quasienergies of the SO-coupled bosonic triple-well system and fine energy band structure is displayed. By adjusting the driving parameters, we reveal that the directed selective spin-flipping or spin-conserving tunneling of a SO-coupled boson occurs along different pathways and in different directions. The analytical results are numerically confirmed and perfect agreements are found. Further, a scheme of quantum spin switch with or without spin-flipping is presented. These results may be useful for quantum information processing and the design of spintronic devices.

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Yuxin Luo, Jia Yi, Wenjuan Li, Xin Xie, Xiaobing Luo, Yunrong Luo. 2021-12-14. Coherent control of spin tunneling in a spin-orbit coupled bosonic triple well. https://doi.org/10.1088/1572-9494%2Fac64f3

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