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Title: Floquet topological polaritons in semiconductor microcavities
Authors: Ge, R.
Broer, Wijnand Hendrik
Liew, Timothy Chi Hin
Keywords: Exciton Polariton
Topological Effects in Photonic Systems
Issue Date: 2018
Source: Ge, R., Broer, W. H., & Liew, T. C. H. (2018). Floquet topological polaritons in semiconductor microcavities. Physical Review B, 97(19), 195305-. doi:10.1103/PhysRevB.97.195305
Series/Report no.: Physical Review B
Abstract: We propose and model Floquet topological polaritons in semiconductor microcavities, using the interference of frequency-detuned coherent fields to provide a time-periodic potential. For arbitrarily weak field strength, where the Floquet frequency is larger than the relevant bandwidth of the system, a Chern insulator is obtained. As the field strength is increased, a topological phase transition is observed with an unpaired Dirac cone proclaiming the anomalous Floquet topological insulator. As the relevant bandwidth increases even further, an exotic Chern insulator with flatband is observed with unpaired Dirac cone at the second critical point. Considering the polariton spin degree of freedom, we find that the choice of field polarization allows oppositely polarized polaritons to either copropagate or counterpropagate in chiral edge states.
ISSN: 2469-9950
DOI: 10.1103/PhysRevB.97.195305
Rights: © 2018 American Physical Society (APS). This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of American Physical Society (APS). The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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