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강상관계 물질 연구단
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Creutz ladder in a resonantly shaken 1D optical lattice

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Title
Creutz ladder in a resonantly shaken 1D optical lattice
Author(s)
Jin Hyoun Kang; Jeong Ho Han; Yong il Shin
Publication Date
2020-01
Journal
NEW JOURNAL OF PHYSICS, v.22, no.1, pp.013023 -
Publisher
IOP PUBLISHING LTD
Abstract
We report the experimental realization of a Creutz ladder for ultracold fermionic atoms in a resonantly driven 1D optical lattice. The two-leg ladder consists of the two lowest orbital states of the optical lattice and the cross inter-leg links are generated via two-photon resonant coupling between the orbitals by periodic lattice shaking. The characteristic pseudo-spin winding structure in the energy bands of the ladder system is demonstrated using momentum-resolved Ramsey-type interferometric measurements. We discuss a two-tone driving method to extend the inter-leg link control and propose a topological charge pumping scheme for the Creutz ladder system. ©2020 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft
URI
https://pr.ibs.re.kr/handle/8788114/7057
ISSN
1367-2630
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
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