TY - JOUR

T1 - One- and two-dimensional solitons in spin-orbit-coupled Bose-Einstein condensates with fractional kinetic energy

AU - Sakaguchi, Hidetsugu

AU - Malomed, Boris A.

N1 - Publisher Copyright:
© 2022 IOP Publishing Ltd.

PY - 2022/8/3

Y1 - 2022/8/3

N2 - We address effects of spin-orbit coupling (SOC), phenomenologically added to a two-component Bose-Einstein condensate composed of particles moving by Lévy flights, in one- and two-dimensional (1D) and (2D) settings. The corresponding system of coupled Gross-Pitaevskii equations includes fractional kinetic-energy operators, characterized by the Lévy index, α < 2 (the normal kinetic energy corresponds to α = 2). The SOC terms, with strength λ, produce strong effects in the 2D case: they create families of stable solitons of the semi-vortex and mixed-mode types in the interval of 1 < α < 2, where the supercritical collapse does not admit the existence of stable solitons in the absence of the SOC. At λ → 0, amplitudes of these solitons vanish 1/4λ 1/(α-1).

AB - We address effects of spin-orbit coupling (SOC), phenomenologically added to a two-component Bose-Einstein condensate composed of particles moving by Lévy flights, in one- and two-dimensional (1D) and (2D) settings. The corresponding system of coupled Gross-Pitaevskii equations includes fractional kinetic-energy operators, characterized by the Lévy index, α < 2 (the normal kinetic energy corresponds to α = 2). The SOC terms, with strength λ, produce strong effects in the 2D case: they create families of stable solitons of the semi-vortex and mixed-mode types in the interval of 1 < α < 2, where the supercritical collapse does not admit the existence of stable solitons in the absence of the SOC. At λ → 0, amplitudes of these solitons vanish 1/4λ 1/(α-1).

KW - Bose-Einstein

KW - fractional kinetic energy

KW - solitons

KW - spin-orbit coupling

UR - http://www.scopus.com/inward/record.url?scp=85133444268&partnerID=8YFLogxK

U2 - 10.1088/1361-6455/ac7685

DO - 10.1088/1361-6455/ac7685

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:85133444268

SN - 0953-4075

VL - 55

JO - Journal of Physics B: Atomic, Molecular and Optical Physics

JF - Journal of Physics B: Atomic, Molecular and Optical Physics

IS - 15

M1 - 155301

ER -