Information processing with topologically protected vortex memories in exciton-polariton condensates

Information processing with topologically protected vortex memories in exciton-polariton condensates

We show that in a nonequilibrium system of an exciton-polariton condensate, where polaritons are generated from incoherent pumping, a ring-shaped pump allows for stationary vortex memory elements of topological charge m=1 or m=−1. Using simple potential guides we can choose whether to copy the same...

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Main Authors: Sigurdsson, H., Egorov, O. A., Ma, X., Shelykh, Ivan A., Liew, Timothy Chi Hin
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2014
Subjects:
DRNTU::Science::Physics
Online Access:https://hdl.handle.net/10356/104704
http://hdl.handle.net/10220/20332
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1047042023-02-28T19:39:52Z Information processing with topologically protected vortex memories in exciton-polariton condensates Sigurdsson, H. Egorov, O. A. Ma, X. Shelykh, Ivan A. Liew, Timothy Chi Hin School of Physical and Mathematical Sciences DRNTU::Science::Physics We show that in a nonequilibrium system of an exciton-polariton condensate, where polaritons are generated from incoherent pumping, a ring-shaped pump allows for stationary vortex memory elements of topological charge m=1 or m=−1. Using simple potential guides we can choose whether to copy the same charge or invert it onto another spatially separate ring pump. Such manipulation of binary information opens the possibility of a new type of processing using vortices as topologically protected memory components. Published version 2014-08-18T06:34:55Z 2019-12-06T21:37:55Z 2014-08-18T06:34:55Z 2019-12-06T21:37:55Z 2014 2014 Journal Article Sigurdsson, H., Egorov, O. A., Ma, X., Shelykh, I. A., & Liew, T. C. H. (2014). Information processing with topologically protected vortex memories in exciton-polariton condensates. Physical Review B, 90(1), 014504-. 1098-0121 https://hdl.handle.net/10356/104704 http://hdl.handle.net/10220/20332 10.1103/PhysRevB.90.014504 en Physical review B © 2014 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 paper can be found at the following official DOI: [10.1103/PhysRevB.90.014504].  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. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Science::Physics
spellingShingle DRNTU::Science::Physics
Sigurdsson, H.
Egorov, O. A.
Ma, X.
Shelykh, Ivan A.
Liew, Timothy Chi Hin
Information processing with topologically protected vortex memories in exciton-polariton condensates
description We show that in a nonequilibrium system of an exciton-polariton condensate, where polaritons are generated from incoherent pumping, a ring-shaped pump allows for stationary vortex memory elements of topological charge m=1 or m=−1. Using simple potential guides we can choose whether to copy the same charge or invert it onto another spatially separate ring pump. Such manipulation of binary information opens the possibility of a new type of processing using vortices as topologically protected memory components.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Sigurdsson, H.
Egorov, O. A.
Ma, X.
Shelykh, Ivan A.
Liew, Timothy Chi Hin
format Article
author Sigurdsson, H.
Egorov, O. A.
Ma, X.
Shelykh, Ivan A.
Liew, Timothy Chi Hin
author_sort Sigurdsson, H.
title Information processing with topologically protected vortex memories in exciton-polariton condensates
title_short Information processing with topologically protected vortex memories in exciton-polariton condensates
title_full Information processing with topologically protected vortex memories in exciton-polariton condensates
title_fullStr Information processing with topologically protected vortex memories in exciton-polariton condensates
title_full_unstemmed Information processing with topologically protected vortex memories in exciton-polariton condensates
title_sort information processing with topologically protected vortex memories in exciton-polariton condensates
publishDate 2014
url https://hdl.handle.net/10356/104704
http://hdl.handle.net/10220/20332
_version_ 1759856523195973632

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