Josephson radiation from nonlinear dynamics of Majorana zero modes
Josephson radiation from nonlinear dynamics of Majorana zero modes
复制标题
马约拉纳零模非线性动力学的约瑟夫森辐射
DOI:
10.1103/physrevb.101.180504
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发表时间:
2019-12
影响因子:
3.7
通讯作者:
Niu Qian
中科院分区:
文献类型:
--
作者:
Feng Jia-Jin;Huang Zhao;Wang Zhi;Niu Qian
Josephson radiation is a powerful method to probe Majorana zero modes in topological superconductors. Recently, Josephson radiation with half the Josephson frequency has been experimentally observed in a HgTe-based junction, possibly from Majorana zero modes. However, this radiation vanishes above a critical voltage, sharply contradicting previous theoretical results. In this work, we theoretically obtain a radiation spectrum quantitatively in agreement with the experiment after including the nonlinear dynamics of the Majorana states into the standard resistively shunted junction model. We further predict two new structures of the radiation spectrum for future experimental verification: an interrupted emission line and a chaotic regime. We develop a fixed-point analysis to understand all these features. Our results resolve an apparent discrepancy between theory and experiments, and will inspire reexamination of structures in radiation spectra of various topological Josephson junctions.
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影响因子:
3.7
作者:
Jordi Pic'o-Cort'es;Fernando Dom'inguez;G. Platero
通讯作者:
Jordi Pic'o-Cort'es;Fernando Dom'inguez;G. Platero
影响因子:
2.9
作者:
Wu, B;Niu, Q
通讯作者:
Niu, Q
影响因子:
8.6
作者:
Fan Zhang;C. L. Kane
通讯作者:
Fan Zhang;C. L. Kane
DOI:
--
发表时间:
2019
期刊:
--
影响因子:
--
作者:
D. Laroche;D. Bouman;D. V. Woerkom;A. Proutski;Chaitanya Murthy;D. Pikulin;C. Nayak;R. V. Gulik
通讯作者:
D. Laroche;D. Bouman;D. V. Woerkom;A. Proutski;Chaitanya Murthy;D. Pikulin;C. Nayak;R. V. Gulik
影响因子:
8.6
作者:
Liu, J;Wu, B;Niu, Q
通讯作者:
Niu, Q