Mechanical Weyl Modes in Topological Maxwell Lattices

PHYSICAL REVIEW LETTERS, no. 13 (2016)

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We show that two-dimensional mechanical lattices can generically display topologically protected bulk zero-energy phonon modes at isolated points in the Brillouin zone, analogs of massless fermion modes of Weyl semimetals. We focus on deformed square lattices as the simplest Maxwell lattices, characterized by equal numbers of constraints ...更多

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