Topological phase transition measured in a dissipative metamaterial

Eric I. Rosenthal; Nicole K. Ehrlich; Mark S. Rudner; Andrew P. Higginbotham; K. W. Lehnert

doi:10.1103/physrevb.97.220301

Topological phase transition measured in a dissipative metamaterial

Eric I. Rosenthal, Nicole K. Ehrlich, Mark S. Rudner, Andrew P. Higginbotham, K. W. Lehnert

Condensed Matter Physics

11 Citations (Scopus)

Abstract

We construct a metamaterial from radio-frequency harmonic oscillators, and find two topologically distinct phases resulting from dissipation engineered into the system. These phases are distinguished by a quantized value of bulk energy transport. The impulse response of our circuit is measured and used to reconstruct the band structure and winding number of circuit eigenfunctions around a dark mode. Our results demonstrate that dissipative topological transport can occur in a wider class of physical systems than considered before.

Original language	English
Article number	220301
Journal	Physical Review B
Volume	97
Issue number	22
Number of pages	5
ISSN	2469-9950
DOIs	https://doi.org/10.1103/physrevb.97.220301
Publication status	Published - 4 Jun 2018

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Cite this

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AU - Ehrlich, Nicole K.

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AU - Lehnert, K. W.

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AB - We construct a metamaterial from radio-frequency harmonic oscillators, and find two topologically distinct phases resulting from dissipation engineered into the system. These phases are distinguished by a quantized value of bulk energy transport. The impulse response of our circuit is measured and used to reconstruct the band structure and winding number of circuit eigenfunctions around a dark mode. Our results demonstrate that dissipative topological transport can occur in a wider class of physical systems than considered before.

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Topological phase transition measured in a dissipative metamaterial

Abstract

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