Chiral Bogoliubov excitations in nonlinear bosonic systems

Bardyn, Charles-Edouard and Karzig, Torsten and Refael, Gil and Liew, Tomothy C. H. (2016) Chiral Bogoliubov excitations in nonlinear bosonic systems. Physical Review B, 93 (2). Art. No. 020502. ISSN 1098-0121. doi:10.1103/PhysRevB.93.020502. https://resolver.caltech.edu/CaltechAUTHORS:20150427-125004319

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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 (2D) 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.

Item Type:

Article

Related URLs:

URL	URL Type	Description
http://dx.doi.org/10.1103/PhysRevB.93.020502	DOI	Article
http://journals.aps.org/prb/supplemental/10.1103/PhysRevB.93.020502	Publisher	Supplementary Material
https://arxiv.org/abs/1503.08824	arXiv	Discussion Paper

ORCID:

Author	ORCID
Karzig, Torsten	0000-0003-0834-0547

Alternate Title:

Chiral Bogoliubons in Nonlinear Bosonic Systems

Additional Information:

© 2016 American Physical Society. Received 6 April 2015; revised manuscript received 29 September 2015; published 5 January 2016. T.L. thanks Y. Chong and B. Zhang for encouraging discussions. This work was funded by the Institute for Quantum Information and Matter, an NSF Physics Frontiers Center with the support of the Gordon and Betty Moore Foundation (Grant No. GBMF1250). G.R. acknowledges support from NSF Grant No. DMR-1410435. Financial support from the Swiss National Science Foundation (SNSF) is also gratefully acknowledged.

Group:

Institute for Quantum Information and Matter

Funders:

Funding Agency	Grant Number
Institute for Quantum Information and Matter (IQIM)	UNSPECIFIED
Gordon and Betty Moore Foundation	GBMF1250
NSF	DMR-1410435
Swiss National Science Foundation (SNSF)	UNSPECIFIED

Issue or Number:

Classification Code:

PACS: 03.75.Lm, 42.65.-k, 71.36.+c, 67.85.Hj

DOI:

10.1103/PhysRevB.93.020502

Record Number:

CaltechAUTHORS:20150427-125004319

Persistent URL:

https://resolver.caltech.edu/CaltechAUTHORS:20150427-125004319

Official Citation:

Chiral Bogoliubov excitations in nonlinear bosonic systems Charles-Edouard Bardyn, Torsten Karzig, Gil Refael, and Timothy C. H. Liew Phys. Rev. B 93, 020502(R) – Published 5 January 2016

Usage Policy:

No commercial reproduction, distribution, display or performance rights in this work are provided.

ID Code:

57013

Collection:

CaltechAUTHORS

Deposited By:

Ruth Sustaita

Deposited On:

27 Apr 2015 20:10

Last Modified:

10 Nov 2021 21:06

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