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arXiv · 2205.13243

High Efficiency Topological Pumping with Discrete Supersymmetry Transformations

David Viedma·Gerard Queraltó·Jordi Mompart·Verònica Ahufinger
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Abstract

Making use of the isospectrality of Supersymmetry transformations, we propose a general and high-fidelity method to prepare gapped topological modes in discrete systems from a single-site excitation. The method consists of adiabatically connecting two superpartner structures, deforming the input state into the desired mode. We demonstrate the method by pumping topological states of the Su-Schrieffer-Heeger model in an optical waveguide array, where the adiabatic deformation is performed along the propagation direction. We obtain fidelities above $F=0.99$ for a wide range of coupling strengths when pumping edge and interface states.

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David Viedma, Gerard Queraltó, Jordi Mompart, Verònica Ahufinger. 2022-05-26. High Efficiency Topological Pumping with Discrete Supersymmetry Transformations. https://doi.org/10.1364/oe.460192

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