Exciton-polariton ring Josephson junction
Abstract Macroscopic coherence in quantum fluids allows the observation of interference effects in their wavefunctions, and enables applications such as superconducting quantum interference devices based on Josephson tunneling. The Josephson effect manifests in both fermionic and bosonic systems, an...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-55119-8 |
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| _version_ | 1841544552671870976 |
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| author | Nina Voronova Anna Grudinina Riccardo Panico Dimitris Trypogeorgos Milena De Giorgi Kirk Baldwin Loren Pfeiffer Daniele Sanvitto Dario Ballarini |
| author_facet | Nina Voronova Anna Grudinina Riccardo Panico Dimitris Trypogeorgos Milena De Giorgi Kirk Baldwin Loren Pfeiffer Daniele Sanvitto Dario Ballarini |
| author_sort | Nina Voronova |
| collection | DOAJ |
| description | Abstract Macroscopic coherence in quantum fluids allows the observation of interference effects in their wavefunctions, and enables applications such as superconducting quantum interference devices based on Josephson tunneling. The Josephson effect manifests in both fermionic and bosonic systems, and has been well studied in superfluid helium and atomic Bose-Einstein condensates. In exciton-polariton condensates—that offer a path to integrated semiconductor platforms—creating weak links in ring geometries has so far remained challenging. In this work, we realize a Josephson junction in a polariton ring condensate. Using optical control of the barrier, we induce net circulation around the ring and demonstrate both superfluid-hydrodynamic and the Josephson regime characterized by a sinusoidal tunneling current. Our theory in terms of the free-energy landscapes explains the appearance of these regimes using experimental values. These results show that weak links in ring condensates can be explored in optical integrated circuits and hold potential for room-temperature applications. |
| format | Article |
| id | doaj-art-e77ba4ab3d414f7ca243846e68eaf1ad |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-e77ba4ab3d414f7ca243846e68eaf1ad2025-01-12T12:30:12ZengNature PortfolioNature Communications2041-17232025-01-011611810.1038/s41467-024-55119-8Exciton-polariton ring Josephson junctionNina Voronova0Anna Grudinina1Riccardo Panico2Dimitris Trypogeorgos3Milena De Giorgi4Kirk Baldwin5Loren Pfeiffer6Daniele Sanvitto7Dario Ballarini8National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)CNR Nanotec, Institute of NanotechnologyCNR Nanotec, Institute of NanotechnologyCNR Nanotec, Institute of NanotechnologyPRISM, Princeton Institute for the Science and Technology of Materials, Princeton UniversityPRISM, Princeton Institute for the Science and Technology of Materials, Princeton UniversityCNR Nanotec, Institute of NanotechnologyCNR Nanotec, Institute of NanotechnologyAbstract Macroscopic coherence in quantum fluids allows the observation of interference effects in their wavefunctions, and enables applications such as superconducting quantum interference devices based on Josephson tunneling. The Josephson effect manifests in both fermionic and bosonic systems, and has been well studied in superfluid helium and atomic Bose-Einstein condensates. In exciton-polariton condensates—that offer a path to integrated semiconductor platforms—creating weak links in ring geometries has so far remained challenging. In this work, we realize a Josephson junction in a polariton ring condensate. Using optical control of the barrier, we induce net circulation around the ring and demonstrate both superfluid-hydrodynamic and the Josephson regime characterized by a sinusoidal tunneling current. Our theory in terms of the free-energy landscapes explains the appearance of these regimes using experimental values. These results show that weak links in ring condensates can be explored in optical integrated circuits and hold potential for room-temperature applications.https://doi.org/10.1038/s41467-024-55119-8 |
| spellingShingle | Nina Voronova Anna Grudinina Riccardo Panico Dimitris Trypogeorgos Milena De Giorgi Kirk Baldwin Loren Pfeiffer Daniele Sanvitto Dario Ballarini Exciton-polariton ring Josephson junction Nature Communications |
| title | Exciton-polariton ring Josephson junction |
| title_full | Exciton-polariton ring Josephson junction |
| title_fullStr | Exciton-polariton ring Josephson junction |
| title_full_unstemmed | Exciton-polariton ring Josephson junction |
| title_short | Exciton-polariton ring Josephson junction |
| title_sort | exciton polariton ring josephson junction |
| url | https://doi.org/10.1038/s41467-024-55119-8 |
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