Journal
PHYSICAL REVIEW B
Volume 105, Issue 17, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.105.174514
Keywords
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Funding
- NSFC [11974049, 92165204, 12174453, NKRDPC-2017YFA0206203]
- Beijing Natural Science Foundation [1192011]
- Guangdong Basic and Applied Basic Research Foundation [2019A1515011620]
- HSCC of Beijing Normal University
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Josephson radiation is a useful signature for detecting Majorana zero modes in topological superconductors. The quantum dynamics of the Majorana two-level system induce oscillatory patterns in the Josephson emission spectra, which can be well described by Bessel functions. These Bessel radiation patterns exist for a wide range of junction parameters, as verified by numerical simulations.
Josephson radiation is a useful signature for detecting Majorana zero modes in topological superconductors. We study the Josephson radiation of the underdamped topological Josephson junction within the quantum resistively and capacitively shunted junction model. We show that the quantum dynamics of the Majorana two-level system induce oscillatory patterns in the Josephson emission spectra. With the Floquet method, we obtain analytical results for these oscillatory patterns and find that they are well described by Bessel functions. We perform numerical simulations to verify the analytical results and demonstrate that these Bessel radiation patterns exist for a wide range of junction parameters.
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