Twist of generalized skyrmions and spin vortices in a polariton superfluid

Autor:	Donati, Stefano, Dominici, Lorenzo, Dagvadorj, Galbadrakh, Ballarini, Dario, De Giorgi, Milena, Bramati, Alberto, Gigli, Giuseppe, Rubo, Yuri G., Szymańska, Marzena Hanna, Sanvitto, Daniele
Rok vydání:	2016
Předmět:	Condensed Matter - Quantum Gases Condensed Matter - Mesoscale and Nanoscale Physics Physics - Optics
Zdroj:	Proceedings of the National Academy of Sciences USA 113, 14926 (2016)
Druh dokumentu:	Working Paper
DOI:	10.1073/pnas.1610123114
Popis:	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 polarization anisotropy can induce a complex dynamics of these structured topologies, leading to the twist of their circuitation on the Poincar\'e sphere of polarizations. The theoretical description of the results carries the concept of generalized quantum vortices in two-component superfluids, which are conformal with polarization loops around an arbitrary axis in the pseudospin space. Comment: 8 pages, 4 figures, SI 3 pages, SI 6 movies at http://www.pnas.org/content/113/52/14926?tab=ds and https://drive.google.com/open?id=0B0QCllnLqdyBUkVaSFpqSHB0cHM
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1701.00157 Zobrazit plný text záznamu View this record from Arxiv