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arXiv · 1802.06815

Floquet engineering of optical solenoids and quantized charge pumping along tailored paths in two-dimensional Chern insulators

Botao Wang·F. Nur Ünal·André Eckardt
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Abstract

The insertion of a local magnetic flux, as the one created by a thin solenoid, plays an important role in gedanken experiments of quantum Hall physics. By combining Floquet engineering of artificial magnetic fields with the ability of single-site addressing in quantum-gas microscopes, we propose a scheme for the realization of such local solenoid-type magnetic fields in optical lattices. We show that it can be employed to manipulate and probe elementary excitations of a topological Chern insulator. This includes quantized adiabatic charge pumping along tailored paths inside the bulk, as well as the controlled population of edge modes.

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Botao Wang, F. Nur Ünal, André Eckardt. 2018-02-19. Floquet engineering of optical solenoids and quantized charge pumping along tailored paths in two-dimensional Chern insulators. https://doi.org/10.1103/physrevlett.120.243602

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