Linear wave dynamics explains observations attributed to dark solitons in a polariton quantum fluid

Cilibrizzi, P., Ohadi, H., Ostatnicky, T., Askitopoulos, A., Langbein, Wolfgang Werner ORCID: https://orcid.org/0000-0001-9786-1023 and Lagoudakis, P. 2014. Linear wave dynamics explains observations attributed to dark solitons in a polariton quantum fluid. Physical Review Letters 113 (10) , 103901. 10.1103/PhysRevLett.113.103901

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Abstract

We investigate the propagation and scattering of polaritons in a planar GaAs microcavity in the linear regime under resonant excitation. The propagation of the coherent polariton wave across an extended defect creates phase and intensity patterns with identical qualitative features previously attributed to dark and half-dark solitons of polaritons. We demonstrate that these features are observed for negligible nonlinearity (i.e., polariton-polariton interaction) and are, therefore, not sufficient to identify dark and half-dark solitons. A linear model based on the Maxwell equations is shown to reproduce the experimental observations.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QC Physics
Publisher:	American Physical Society
ISSN:	0031-9007
Funders:	Engineering and Physical Sciences Research Council
Date of First Compliant Deposit:	30 March 2016
Date of Acceptance:	24 June 2014
Last Modified:	05 May 2023 01:57
URI:	https://orca.cardiff.ac.uk/id/eprint/84951

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