Dynamical leakage of Majorana mode into side-attached quantum dot

Abstract

We study a hybrid structure, comprising the single-level quantum dot attached to the topological superconducting nanowire, inspecting dynamical transfer of the Majorana quasiparticle onto normal region. Motivated by the recent experimental realization of such heterostructure and its investigation under the stationary conditions [L. Schneider et al., https://doi.org/10.1038/s41467-020-18540-3, Nature Communications 11, 4707 (2020)] where the quantum dot energy level can be tuned by gate potential we examine how much time is needed for the Majorana mode to leak into the normal region. We estimate, that for typical hybrid structures this dynamical process would take about 20 nanoseconds. We propose a feasible empirical protocol for its detection by means of the time-resolved Andreev tunneling spectroscopy.

arXiv comment9 pages, 5 figures

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Cited by in corpus (7)

• Accessing the degree of Majorana nonlocality in a quantum dot-optical microcavity system
• Electron correlation effects in superconducting nanowires in and out of equilibrium
• Transient effects in quantum dots contacted via topological superconductor
• Signatures of Kondo-Majorana interplay in ac response
• Continuous unitary transformation approach to the Kondo-Majorana interplay
• Quench dynamics of Fano-like resonances in the presence of the on-dot superconducting pairing
• Transient triplet blockade in Andreev junction