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arXiv · 2304.05154

Quantum detection of millimeter wave electric fields with driving surface-state electrons

Miao Zhang·Y. F. Wang·X. Y. Peng·X. N. Feng·S. R. He·Y. F. Li·L. F. Wei
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Abstract

We introduce a spin-based receiver to sensitively detect the electric fields of millimeter (mm) waves by using quantum interferometric approach. The proposed quantum sensor consists of many surface-state electrons trapped individually on liquid helium by an electrode-network at the bottom of the liquid helium film. A dc-current in this chip is biased to generate a strong spin-orbit coupling of each of the trapped electrons. The mm wave signals are conducted to non-dissipatedly drive the orbital motions of the trapped electrons and result in the Stark shifts of the spin-orbit dressed states of the electrons. As a consequence, the electric fields of the conducted mm waves could be detected sensitively by using the Hahn echo interferometry with the long-lived spin states of the electrons trapped on liquid helium.

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Miao Zhang, Y. F. Wang, X. Y. Peng, X. N. Feng, S. R. He, Y. F. Li, L. F. Wei. 2023-04-11. Quantum detection of millimeter wave electric fields with driving surface-state electrons. https://arxiv.org/abs/2304.05154

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