Presentation Information

4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)

[Th-P2-D-02]Anomalous High-Order Fractional Shapiro Steps in an Al/InAs Nanowire Josephson Junction

〇Haitian Su^1,2,3, Ji-Yin Wang¹, Han Gao^1,2, Yi Luo^1,2,3, Weijie Li^1,2,4, Shili Yan¹, Xingjun Wu¹, Dong Pan⁵, Jianhua Zhao⁵, Po Zhang¹, H. Q. Xu^1,2 (1. Beijing Academy of Quantum Info. Sci. (China), 2. Beijing Key Lab. of Quantum Devices and School of Electronics, Peking Univ. (China), 3. Institute of Condensed Matter and Material Physics, School of Physics, Peking Univ. (China), 4. Academy for Advanced Interdisciplinary Studies, Peking Univ. (China), 5. State Key Lab. of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sci. (China))

We report anomalous high-order fractional Shapiro steps in epitaxial Al/InAs nanowire Josephson junctions. Their widths defy typical theoretical expectations as the microwave frequency increases. This system provides an ideal platform for probing non-equilibrium quantum dynamics.

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