TY - JOUR
T1 - Stable Solitons in Three Dimensional Free Space without the Ground State
T2 - Self-Trapped Bose-Einstein Condensates with Spin-Orbit Coupling
AU - Zhang, Yong Chang
AU - Zhou, Zheng Wei
AU - Malomed, Boris A.
AU - Pu, Han
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/12/17
Y1 - 2015/12/17
N2 - By means of variational methods and systematic numerical analysis, we demonstrate the existence of metastable solitons in three dimensional (3D) free space, in the context of binary atomic condensates combining contact self-attraction and spin-orbit coupling, which can be engineered by available experimental techniques. Depending on the relative strength of the intra- and intercomponent attraction, the stable solitons feature a semivortex or mixed-mode structure. In spite of the fact that the local cubic self-attraction gives rise to the supercritical collapse in 3D, and hence the setting produces no true ground state, the solitons are stable against small perturbations, motion, and collisions.
AB - By means of variational methods and systematic numerical analysis, we demonstrate the existence of metastable solitons in three dimensional (3D) free space, in the context of binary atomic condensates combining contact self-attraction and spin-orbit coupling, which can be engineered by available experimental techniques. Depending on the relative strength of the intra- and intercomponent attraction, the stable solitons feature a semivortex or mixed-mode structure. In spite of the fact that the local cubic self-attraction gives rise to the supercritical collapse in 3D, and hence the setting produces no true ground state, the solitons are stable against small perturbations, motion, and collisions.
UR - http://www.scopus.com/inward/record.url?scp=84953254137&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.115.253902
DO - 10.1103/PhysRevLett.115.253902
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AN - SCOPUS:84953254137
SN - 0031-9007
VL - 115
JO - Physical Review Letters
JF - Physical Review Letters
IS - 25
M1 - 253902
ER -