Double-quantum spin vortices in SU(3) spin-orbit-coupled Bose gases
Double-quantum spin vortices in SU(3) spin-orbit-coupled Bose gases
We show that double-quantum spin vortices, which are characterized by doubly quantized circulating spin currents and unmagnetized filled cores, can exist in the ground states of SU(3) spin-orbit-coupled Bose gases. It is found that the SU(3) spin-orbit coupling and spin-exchange interaction play important roles in determining the ground-state phase diagram. …