Subwavelength grated waveguide supporting polariton beads (visualization: Antonio Gianfrate, Credit: CNR Nanotec, editedScientists have advanced the field by stabilizing exciton-polaritons in semiconductor photonic gratings, accomplishing optically configurable and long-lived quantum fluids appropriate for complicated system simulations.Researchers from CNR Nanotec in Lecce and the Faculty of Physics at the University of Warsaw utilized a new generation of semiconductor photonic gratings to optically customize complexes of quantum beads of light that ended up being bound together into macroscopic coherent states. The resulting new bosonic quantum particles, known as exciton-polaritons (or polaritons for short), can under the right scenarios undergo a phase transition into a nonequilibrium Bose-Einstein condensate and form a macroscopic quantum fluid or a droplet of light. Quantum fluids of polaritons have lots of prominent homes, one being that they are optically configurable and legible, allowing simple measurements of the polariton characteristics. Now, the scientists had polariton fluids that were both exceptionally long lived and securely restricted using just optical techniques.Combined, these systems permitted Antonio Gianfrate and Danielle Sanvitto at CNR Nanotec in Lecce to optically pump multiple polariton beads that could hybridize and communicate into macroscopic complexes. The mixture of these two mechanisms opens a brand-new window to look at emerging behaviours of synchrony and pattern formation in structured polariton quantum fluids” concludes Helgi Sigurðsson from the Faculty of Physics, University of Warsaw.Reference: “Reconfigurable quantum fluid molecules of bound states in the continuum” by Antonio Gianfrate, Helgi Sigurðsson, Vincenzo Ardizzone, Hai Chau Nguyen, Fabrizio Riminucci, Maria Efthymiou-Tsironi, Kirk W. Baldwin, Loren N. Pfeiffer, Dimitrios Trypogeorgos, Milena De Giorgi, Dario Ballarini, Hai Son Nguyen and Daniele Sanvitto, 4 January 2024, Nature Physics.DOI: 10.1038/ s41567-023-02281-3An international group of researchers conducted research study supported by the National Science Center grant (2022/45/P/ ST3/00467) co-funded by the European Union Framework Programme for Research and Innovation Horizon 2020 under the Marie Sklodowska-Curie grant agreement (No. 945339).
Subwavelength grated waveguide supporting polariton beads (visualization: Antonio Gianfrate, Credit: CNR Nanotec, editedScientists have advanced the field by supporting exciton-polaritons in semiconductor photonic gratings, achieving optically configurable and long-lived quantum fluids appropriate for complicated system simulations.Researchers from CNR Nanotec in Lecce and the Faculty of Physics at the University of Warsaw used a brand-new generation of semiconductor photonic gratings to optically tailor complexes of quantum beads of light that became bound together into macroscopic meaningful states. Quantum fluids of polaritons have lots of prominent properties, one being that they are optically configurable and readable, allowing easy measurements of the polariton dynamics. Now, the scientists possessed polariton fluids that were both extremely long lived and safely restricted using only optical techniques.Combined, these systems allowed Antonio Gianfrate and Danielle Sanvitto at CNR Nanotec in Lecce to optically pump numerous polariton beads that could communicate and hybridize into macroscopic complexes.
