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Condensed Matter > Mesoscale and Nanoscale Physics
Title: Experimental demonstration of position-controllable topological interface states in high-frequency topological integrated circuits
(Submitted on 6 Jan 2023 (v1), last revised 3 Oct 2023 (this version, v2))
Abstract: Topological integrated circuits are integrated-circuit realizations of topological systems. Here we show an experimental demonstration by taking the case of the Kitaev topological superconductor model. An integrated-circuit implementation enables us to realize high resonant frequency as high as 13GHz. We explicitly observe the spatial profile of a topological edge state. In particular, the topological interface state between a topological segment and a trivial segment is the Majorana-like state. We construct a switchable structure in the integrated circuit, which enables us to control the position of a Majorana-like interface state arbitrarily along a chain. Our results contribute to the development of topological electronics with high frequency integrated circuits.
Submission history
From: Motohiko Ezawa [view email][v1] Fri, 6 Jan 2023 09:53:08 GMT (958kb,D)
[v2] Tue, 3 Oct 2023 02:23:37 GMT (1554kb,D)
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