Twist of Generalized Skyrmions and Spin Vortices in a Polariton Superfluid

Overview

Journal Proc Natl Acad Sci U S A

Specialty Science

Date 2016 Dec 15

PMID 27965393

Citations 8

Authors

Stefano Donati

Lorenzo Dominici

Galbadrakh Dagvadorj

Dario Ballarini

Milena De Giorgi

Alberto Bramati

Giuseppe Gigli

Yuri G Rubo

Marzena Hanna Szymanska

Daniele Sanvitto

Affiliations

Soon will be listed here.

Abstract

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 Poincaré 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.

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