2023/12/06 by Kuzmanovski, Dushko, Souto, Rubén Seoane, Wong, Patrick J. +1
#FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Superconductivity (cond-mat.supr-con)
paper · doi:10.48550/arxiv.2312.03456
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.