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Twist of generalized skyrmions and spin vortices in a polariton superfluid
Stefano Donati, Lorenzo Dominici, Galbadrakh Dagvadorj +7
We study the spin vortices and skyrmions coherently imprinted into an exciton-polariton condensate on a planar semiconductor microcavity. We demonstrate that the presence of a pola…
Topological order and equilibrium in a condensate of exciton-polaritons
Davide Caputo, Dario Ballarini, Galbadrakh Dagvadorj +9
We report the observation of the Berezinskii-Kosterlitz-Thouless transition for a 2D gas of exciton-polaritons, and through the joint measurement of the first-order coherence both…
Room-temperature superfluidity in a polariton condensate
Giovanni Lerario, Antonio Fieramosca, Fábio Barachati +8
Superfluidity---the suppression of scattering in a quantum fluid at velocities below a critical value---is one of the most striking manifestations of the collective behaviour typic…
Macroscopic Two-Dimensional Polariton Condensates
Dario Ballarini, Davide Caputo, Carlos Sánchez Muñoz +8
We report a record-size, two-dimensional polariton condensate of a fraction of a millimeter radius free from the presence of an exciton reservoir. This macroscopically occupied sta…
Entangling one polariton with a photon: effect of interactions on a single-polariton quantum state
Álvaro Cuevas, Blanca Silva, Juan Camilo López Carreño +16
Polaritons are quasi-particles originating from the coupling of light with matter that demonstrated quantum phenomena at the many-particle mesoscopic level, such as BEC and superfl…