Vortex clusters in a stirred polariton condensate
The response of superfluids to the external rotation, evidenced by emergence of quantised vortices, distinguishes them from conventional fluids. In this work, we demonstrate that the number of vortices in a stirred polariton condensate depends on the characteristic size of the employed rotating pote...
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| Veröffentlicht in: | arXiv.org 2023-08 |
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| creator | Gnusov, Ivan Harrison, Stella Alyatkin, Sergey Sitnik, Kirill Sigurdsson, Helgi Lagoudakis, Pavlos G |
| description | The response of superfluids to the external rotation, evidenced by emergence of quantised vortices, distinguishes them from conventional fluids. In this work, we demonstrate that the number of vortices in a stirred polariton condensate depends on the characteristic size of the employed rotating potential induced by the nonresonant laser excitation. For smaller sizes, a single vortex with a topological charge of +-1 corresponding to the stirring direction is formed. However, for larger optical traps, clusters of two or three co-rotating vortices appear in the narrow range of GHz stirring speed. |
| doi_str_mv | 10.48550/arxiv.2308.09373 |
| format | Article |
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| subjects | Clusters Condensates Optical traps Physics - Mesoscale and Nanoscale Physics Physics - Optics Physics - Quantum Gases Polaritons Rotation Stirring Vortices |
| title | Vortex clusters in a stirred polariton condensate |
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