Vortex clusters in a stirred polariton condensate
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2023
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866910405639536640 |
|---|---|
| author | Gnusov, Ivan Harrison, Stella Alyatkin, Sergey Sitnik, Kirill Sigurdsson, Helgi Lagoudakis, Pavlos G. |
| author_facet | Gnusov, Ivan Harrison, Stella Alyatkin, Sergey Sitnik, Kirill Sigurdsson, Helgi Lagoudakis, Pavlos G. |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_09373 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Vortex clusters in a stirred polariton condensate Gnusov, Ivan Harrison, Stella Alyatkin, Sergey Sitnik, Kirill Sigurdsson, Helgi Lagoudakis, Pavlos G. Mesoscale and Nanoscale Physics Quantum Gases Optics 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. |
| title | Vortex clusters in a stirred polariton condensate |
| topic | Mesoscale and Nanoscale Physics Quantum Gases Optics |
| url | https://arxiv.org/abs/2308.09373 |