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https://hdl.handle.net/10356/85837
Title: | Chiral Bogoliubov excitations in nonlinear bosonic systems | Authors: | Bardyn, Charles-Edouard Karzig, Torsten Refael, Gil Liew, Timothy Chi Hin |
Keywords: | Optomechanics Bosons |
Issue Date: | 2016 | Source: | Bardyn, C.-E., Karzig, T., Refael, G., & Liew, T. C. H. (2016). Chiral Bogoliubov excitations in nonlinear bosonic systems. Physical Review B, 93(2), 020502-. | Series/Report no.: | Physical Review B | Abstract: | We present a versatile scheme for creating topological Bogoliubov excitations in weakly interacting bosonic systems. Our proposal relies on a background stationary field that consists of a kagome vortex lattice, which breaks time-reversal symmetry and induces a periodic potential for Bogoliubov excitations. In analogy to the Haldane model, no external magnetic field or net flux is required. We construct a generic model based on the two-dimensional nonlinear Schrödinger equation and demonstrate the emergence of topological gaps crossed by chiral Bogoliubov edge modes. Our scheme can be realized in a wide variety of physical systems ranging from nonlinear optical systems to exciton-polariton condensates. | URI: | https://hdl.handle.net/10356/85837 http://hdl.handle.net/10220/43876 |
ISSN: | 2469-9950 | DOI: | 10.1103/PhysRevB.93.020502 | Schools: | School of Physical and Mathematical Sciences | Rights: | © 2016 American Physical Society. This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of American Physical Society. The published version is available at: [http://dx.doi.org/10.1103/PhysRevB.93.020502]. 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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Chiral Bogoliubov excitations in nonlinear bosonic systems.pdf | 2.73 MB | Adobe PDF | View/Open |
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