Imaging nodal knots in momentum space through topolectrical circuits

Ching Hua Lee; Amanda Sutrisno; Tobias Hofmann; Tobias Helbig; Yuhan Liu; Yee Sin Ang; Lay Kee Ang; Xiao Zhang; Martin Greiter; Ronny Thomale

doi:10.1038/s41467-020-17716-1

Nature Communications (Sep 2020)

Imaging nodal knots in momentum space through topolectrical circuits

Ching Hua Lee,
Amanda Sutrisno,
Tobias Hofmann,
Tobias Helbig,
Yuhan Liu,
Yee Sin Ang,
Lay Kee Ang,
Xiao Zhang,
Martin Greiter,
Ronny Thomale

Affiliations

Ching Hua Lee: Department of Physics, National University of Singapore
Amanda Sutrisno: Science, Mathematics and Technology, Singapore University of Technology and Design
Tobias Hofmann: Institute for Theoretical Physics and Astrophysics, University of Würzburg, Am Hubland
Tobias Helbig: Institute for Theoretical Physics and Astrophysics, University of Würzburg, Am Hubland
Yuhan Liu: Department of Physics, The University of Chicago
Yee Sin Ang: Science, Mathematics and Technology, Singapore University of Technology and Design
Lay Kee Ang: Science, Mathematics and Technology, Singapore University of Technology and Design
Xiao Zhang: School of Physics, Sun Yat-sen University
Martin Greiter: Institute for Theoretical Physics and Astrophysics, University of Würzburg, Am Hubland
Ronny Thomale: Institute for Theoretical Physics and Astrophysics, University of Würzburg, Am Hubland

DOI: https://doi.org/10.1038/s41467-020-17716-1
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 13

Abstract

Read online

Topological phases with knotted configurations in momentum space have been challenging to realize. Here, Lee et al. provide a systematic design and measurement of a three-dimensional knotted nodal structure, and resolve its momentum space drumhead states via a topolectrical RLC-type circuit.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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