Generating arbitrary topological windings of a non-Hermitian band
Abstract
The non-trivial topological features in the energy band of non-Hermitian systems provide promising pathways to achieve robust physical behaviors in classical or quantum open systems. A key topological feature, unique to non-Hermitian systems, is the non-trivial winding of the energy band in the complex energy plane. Here we provide direct experimental demonstrations of such non-trivial winding, by implementing non-Hermitian lattice Hamiltonians...
Paper Details
Title
Generating arbitrary topological windings of a non-Hermitian band
Published Date
Mar 19, 2021
Journal
Volume
371
Issue
6535
Pages
1240 - 1245
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History