Tosi, G;
Marchetti, FM;
Sanvitto, D;
Antón, C;
Szymańska, MH;
Berceanu, A;
Tejedor, C;
... Viña, L; + view all
(2011)
Onset and dynamics of vortex-antivortex pairs in polariton optical parametric oscillator superfluids.
Physical Review Letters
, 107
(3)
, Article 036401. 10.1103/PhysRevLett.107.036401.
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Abstract
We study, both theoretically and experimentally, the occurrence of topological defects in polariton superfluids in the optical parametric oscillator (OPO) regime. We explain in terms of local supercurrents the deterministic behavior of both the onset and dynamics of vortex-antivortex pairs generated by perturbing the system with a pulsed probe. Using a generalized Gross-Pitaevskii equation, including photonic disorder, pumping and decay, we elucidate the reason why topological defects form in couples and can be detected by direct visualizations in multishot OPO experiments.
| Type: | Article |
|---|---|
| Title: | Onset and dynamics of vortex-antivortex pairs in polariton optical parametric oscillator superfluids |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.107.036401 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.107.036401 |
| Language: | English |
| Additional information: | © 2011 American Physical Society |
| 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-pp.ucl.ac.uk/id/eprint/1398722 |
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