Marchetti, FM;
Szymanska, MH;
(2012)
Vortices in polariton OPO superfluids.
In:
Exciton Polaritons in Microcavities – New Frontiers.
(173 - 213).
Springer-Verlag
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Abstract
his chapter reviews the occurrence of quantised vortices in polariton fluids, primarily when polaritons are driven in the optical parametric oscillator (OPO) regime. We first review the OPO physics, together with both its analytical and numerical modelling, the latter being necessary for the description of finite size systems. Pattern formation is typical in systems driven away from equilibrium. Similarly, we find that uniform OPO solutions can be unstable to the spontaneous formation of quantised vortices. However, metastable vortices can only be injected externally into an otherwise stable symmetric state, and their persistence is due to the OPO superfluid properties. We discuss how the currents characterising an OPO play a crucial role in the occurrence and dynamics of both metastable and spontaneous vortices.
| Type: | Book chapter |
|---|---|
| Title: | Vortices in polariton OPO superfluids |
| ISBN-13: | 978-3-642-24185-7 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/978-3-642-24186-4_6 |
| Publisher version: | http://link.springer.com/chapter/10.1007%2F978-3-6... |
| Language: | English |
| Additional information: | © 2012 Springer-Verlag Berlin Heidelberg. The final publication is available at link.springer.com |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1412360 |
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