The University of Southampton
University of Southampton Institutional Repository

Observation of half-quantum vortices in an exciton-polariton condensate

Observation of half-quantum vortices in an exciton-polariton condensate
Observation of half-quantum vortices in an exciton-polariton condensate
Singly quantized vortices have already been observed in many systems, including the superfluid helium, Bose-Einstein condensates of dilute atomic gases, and condensates of exciton-polaritons in the solid state. Two-dimensional superfluids carrying spin are expected to demonstrate a different type of elementary excitations referred to as half-quantum vortices, characterized by a {pi} rotation of the phase and a {pi} rotation of the polarization vector when circumventing the vortex core. We detect half-quantum vortices in an exciton-polariton condensate by means of polarization-resolved interferometry, real-space spectroscopy, and phase imaging. Half-quantum vortices coexist with single-quantum vortices in our sample.
0036-8075
974-976
Lagoudakis, K.G.
144a5c8b-d1ef-4259-8d72-5b3b9b927b6b
Ostatnický, T.
5bcc487b-9a23-4ba5-baff-5fdd807ebf2f
Kavokin, A.V.
70ffda66-cfab-4365-b2db-c15e4fa1116b
Rubo, Y.G.
11da6e15-93bf-4529-857c-71ecb819d540
André, R.
41752c19-c100-47f8-a27e-9985915648f0
Deveaud-Plédra, B.
063638b5-6c96-4a3a-8938-fe13ace885f4
Lagoudakis, K.G.
144a5c8b-d1ef-4259-8d72-5b3b9b927b6b
Ostatnický, T.
5bcc487b-9a23-4ba5-baff-5fdd807ebf2f
Kavokin, A.V.
70ffda66-cfab-4365-b2db-c15e4fa1116b
Rubo, Y.G.
11da6e15-93bf-4529-857c-71ecb819d540
André, R.
41752c19-c100-47f8-a27e-9985915648f0
Deveaud-Plédra, B.
063638b5-6c96-4a3a-8938-fe13ace885f4

Lagoudakis, K.G., Ostatnický, T., Kavokin, A.V., Rubo, Y.G., André, R. and Deveaud-Plédra, B. (2009) Observation of half-quantum vortices in an exciton-polariton condensate. Science, 326 (5955), 974-976. (doi:10.1126/science.1177980).

Record type: Article

Abstract

Singly quantized vortices have already been observed in many systems, including the superfluid helium, Bose-Einstein condensates of dilute atomic gases, and condensates of exciton-polaritons in the solid state. Two-dimensional superfluids carrying spin are expected to demonstrate a different type of elementary excitations referred to as half-quantum vortices, characterized by a {pi} rotation of the phase and a {pi} rotation of the polarization vector when circumventing the vortex core. We detect half-quantum vortices in an exciton-polariton condensate by means of polarization-resolved interferometry, real-space spectroscopy, and phase imaging. Half-quantum vortices coexist with single-quantum vortices in our sample.

Text
ScienceKonstantinos.pdf - Other
Restricted to Repository staff only
Request a copy

More information

Published date: 13 November 2009
Organisations: Physics & Astronomy

Identifiers

Local EPrints ID: 148761
URI: http://eprints.soton.ac.uk/id/eprint/148761
ISSN: 0036-8075
PURE UUID: a0537d6b-281a-4a47-a33a-7d2358bd34d0

Catalogue record

Date deposited: 28 Apr 2010 15:01
Last modified: 14 Mar 2024 01:04

Export record

Altmetrics

Contributors

Author: K.G. Lagoudakis
Author: T. Ostatnický
Author: A.V. Kavokin
Author: Y.G. Rubo
Author: R. André
Author: B. Deveaud-Plédra

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×