Chiral Bogoliubov excitations in nonlinear bosonic systems

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 exci...

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Main Authors: Bardyn, Charles-Edouard, Karzig, Torsten, Refael, Gil, Liew, Timothy Chi Hin
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2017
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Online Access:https://hdl.handle.net/10356/85837
http://hdl.handle.net/10220/43876
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-858372023-02-28T19:23:23Z Chiral Bogoliubov excitations in nonlinear bosonic systems Bardyn, Charles-Edouard Karzig, Torsten Refael, Gil Liew, Timothy Chi Hin School of Physical and Mathematical Sciences Optomechanics Bosons 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. Published version 2017-10-13T05:46:30Z 2019-12-06T16:11:05Z 2017-10-13T05:46:30Z 2019-12-06T16:11:05Z 2016 Journal Article 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-. 2469-9950 https://hdl.handle.net/10356/85837 http://hdl.handle.net/10220/43876 10.1103/PhysRevB.93.020502 en Physical Review B © 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. 6 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Optomechanics
Bosons
spellingShingle Optomechanics
Bosons
Bardyn, Charles-Edouard
Karzig, Torsten
Refael, Gil
Liew, Timothy Chi Hin
Chiral Bogoliubov excitations in nonlinear bosonic systems
description 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.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Bardyn, Charles-Edouard
Karzig, Torsten
Refael, Gil
Liew, Timothy Chi Hin
format Article
author Bardyn, Charles-Edouard
Karzig, Torsten
Refael, Gil
Liew, Timothy Chi Hin
author_sort Bardyn, Charles-Edouard
title Chiral Bogoliubov excitations in nonlinear bosonic systems
title_short Chiral Bogoliubov excitations in nonlinear bosonic systems
title_full Chiral Bogoliubov excitations in nonlinear bosonic systems
title_fullStr Chiral Bogoliubov excitations in nonlinear bosonic systems
title_full_unstemmed Chiral Bogoliubov excitations in nonlinear bosonic systems
title_sort chiral bogoliubov excitations in nonlinear bosonic systems
publishDate 2017
url https://hdl.handle.net/10356/85837
http://hdl.handle.net/10220/43876
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