Speaker
Prof.
Vladimir Konotop
(Universidade de Lisboa)
Description
Spin-orbit coupled Bose-Einstein condensates (SO-BECs), which in the meanfield approximation are governed by two linearly coupled Gross-Pitaevskii equations, allow for the existence of many types of localized nonlinear excitations: fundamental and multipole solitons, soliton half-vortices, etc. In the first part of the talk, such excitations will be considered in the presence of so-called Zeeman lattice (i.e. periodic potential which is pi-shifted in both components). I will discuss classification of the solutions with respect to the parity, time, pseudo-charge, and lattice symmetries. In the second part of the talk, a homogeneous SO-BEC will be considered in the presence of mechanisms of loading and loosing atoms. Spontaneous PT-symmetry breaking scenarios, as well as nonlinear modes in such SO-BECs will be described.
Primary author
Prof.
Vladimir Konotop
(Universidade de Lisboa)
Co-authors
Dr
Dmitry Zezyulin
(Universidade de Lisboa)
Prof.
Yaroslav Kartashov
(ICFO-Institut de Ciencies Fotoniques, Spain)
