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Topological Quantum Computing
Probing topological invariants in the bulk of a non-Hermitian optical system
arXiv
Authors: Julia M. Zeuner, Mikael C. Rechtsman, Yonatan Plotnik, Yaakov Lumer, Mark S. Rudner, Mordechai Segev, Alexander Szameit
Year
2014
Paper ID
48133
Status
Preprint
Abstract Read
~2 min
Abstract Words
80
Citations
N/A
Abstract
Topological insulators are insulating in the bulk but feature conducting states on their surfaces. Standard methods for probing their topological properties largely involve probing the surface, even though topological invariants are defined via the bulk band structure. Here, we utilize non-hermiticy to experimentally demonstrate a topological transition in an optical system, using bulk behavior only, without recourse to surface properties. This concept is relevant for a wide range of systems beyond optics, where the surface physics is difficult to probe.
Why This Paper Matters
- This paper contributes to the Topological Quantum Computing research area in the Quantum Articles archive.
- It adds a 2014 reference point for readers tracking recent quantum research.
- Topological insulators are insulating in the bulk but feature conducting states on their surfaces.
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