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Title: Observation of antichiral edge states in a circuit lattice
Authors: Yang, YuTing
Zhu, DeJun
Hang, ZhiHong
Chong, Yidong
Keywords: Science::Physics
Issue Date: 2021
Source: Yang, Y., Zhu, D., Hang, Z. & Chong, Y. (2021). Observation of antichiral edge states in a circuit lattice. SCIENCE CHINA Physics, Mechanics and Astronomy, 64(5), 257011-.
Project: MOE2016-T3-1-006 
Journal: SCIENCE CHINA Physics, Mechanics and Astronomy 
Abstract: We construct an electrical circuit to realize a modified Haldane lattice exhibiting the phenomenon of antichiral edge states. The circuit consists of a network of inductors and capacitors with interconnections reproducing the effects of a magnetic vector potential. The next nearest neighbor hoppings are configured differently from the standard Haldane model, and as predicted by earlier theoretical studies, this gives rise to antichiral edge states that propagate in the same direction on opposite edges and coexist with bulk states at the same frequency. Using pickup coils to measure voltage distributions in the circuit, we experimentally verify the key features of the antichiral edge states, including their group velocities and ability to propagate consistently in a Möbius strip configuration.
ISSN: 1674-7348
DOI: 10.1007/s11433-021-1675-0
Schools: School of Physical and Mathematical Sciences 
Research Centres: Centre for Disruptive Photonic Technologies (CDPT) 
Rights: © 2021 Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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