Mobile Topological Su-Schrieffer-Heeger Soliton in a Josephson Metamaterial
Abstract
Circuits involving arrays of Josephson junctions have emerged as a new platform for exploring and simulating complex bosonic systems. Motivated by this advance, we develop and theoretically analyze a one-dimensional bosonic system with sublattice symmetry, a bosonic Su-Schrieffer-Heeger model. The system features electrostatically controlled topological mid-gap states that we call soliton states. These modes can be measured using either spectroscopy through a normal lead or admittance measurements. We develop a protocol to adiabatically shuttle the position of these topological soliton states using local electrostatic gates. We demonstrate a nearly perfect fidelity of soliton shuttling for timescales within experimental reach.
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Cite
@article{arxiv.2312.03456,
title = {Mobile Topological Su-Schrieffer-Heeger Soliton in a Josephson Metamaterial},
author = {Dushko Kuzmanovski and Rubén Seoane Souto and Patrick J. Wong and Alexander V. Balatsky},
journal= {arXiv preprint arXiv:2312.03456},
year = {2023}
}
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