Experimental demonstration of position-controllable topological interface states in high-frequency topological integrated circuits

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.

13 pages, 9 figures

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Cited by in corpus (3)

• Engineering topological states and quantum-inspired information processing using classical circuits
• Structure and scaling of Kitaev chain across a quantum critical point in real space
• Zero and Nonzero Energy Majorana Modes in an Extended Kitaev Chain