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Condensed Matter > Mesoscale and Nanoscale Physics
Title: Manipulation of Weyl Points in Reciprocal and Nonreciprocal Mechanical Lattices
(Submitted on 15 Aug 2023 (v1), last revised 22 Mar 2024 (this version, v2))
Abstract: We introduce feedback-measurement technologies to achieve flexible control of Weyl points and conduct the first experimental demonstration of Weyl type I-II transition in mechanical systems. We demonstrate that non-Hermiticity can expand the Fermi arc surface states from connecting Weyl points to Weyl rings, and lead to a localization transition of edge states influenced by the interplay between band topology and the non-Hermitian skin effect. Our findings offer valuable insights into the design and manipulation of Weyl points in mechanical systems, providing a promising avenue for manipulating topological modes in non-Hermitian systems.
Submission history
From: Mingsheng Tian [view email][v1] Tue, 15 Aug 2023 16:00:44 GMT (3336kb,D)
[v2] Fri, 22 Mar 2024 02:24:19 GMT (4542kb,D)
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