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Condensed Matter > Mesoscale and Nanoscale Physics
Title: Double Fu-teleportation and anomalous Coulomb blockade in a Majorana-hosted superconducting island
(Submitted on 20 Jan 2022 (v1), last revised 27 Jan 2022 (this version, v2))
Abstract: We study the temperature dependence of Coulomb Blockade peak conductance based on a Majorana-hosted superconducting island. In the low-temperature regime, we discover a coherent double Fu-teleportation (FT) process, where any independent tunneling process always involves two coherent FTs; and we also find an anomalous universal scaling behavior, which shows a transition from a [max(T,eV)]^6 to a [max(T,eV)]^3 conductance behavior as increasing energy scale. In the high-temperature regime, using the familiar rate equation method, we find that the conductance is proportional to the reciprocal of the temperature and shows a non-monotonic temperature-dependence. Both the anomalous power-law behavior and non-monotonic temperature-dependence can be distinguished from the conductance peak in the traditional Coulomb block, and therefore, serve as a hallmark for the non-local transport in the topological superconducting island.
Submission history
From: Dong Liu [view email][v1] Thu, 20 Jan 2022 13:44:38 GMT (418kb,D)
[v2] Thu, 27 Jan 2022 15:45:01 GMT (413kb,D)
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