TY - JOUR
T1 - Composite localized modes in discretized spin-orbit-coupled Bose-Einstein condensates
AU - Beličev, Petra P.
AU - Gligorić, Goran
AU - Petrovic, Jovana
AU - Maluckov, Aleksandra
AU - Hadžievski, Ljupčo
AU - Malomed, Boris A.
N1 - Publisher Copyright:
© 2015 IOP Publishing Ltd.
PY - 2015/3/28
Y1 - 2015/3/28
N2 - We introduce a discrete model for binary spin-orbit-coupled Bose-Einstein condensates trapped in a deep one-dimensional optical lattice. Two different types of the couplings are considered, with spatial derivatives acting inside each species, or between the species. The discrete system with inter-site couplings dominated by the spin-orbit coupling (SOC), while the usual hopping is negligible, emulates condensates composed of extremely heavy atoms, as well as those with opposite signs of the effective atomic masses in the two components. Stable localized composite states of miscible and immiscible types are constructed. The effect of the SOC on the immiscibility-miscibility transition in the localized complexes, which emulates the phase transition between insulating and conducting states in semiconductors, is studied.
AB - We introduce a discrete model for binary spin-orbit-coupled Bose-Einstein condensates trapped in a deep one-dimensional optical lattice. Two different types of the couplings are considered, with spatial derivatives acting inside each species, or between the species. The discrete system with inter-site couplings dominated by the spin-orbit coupling (SOC), while the usual hopping is negligible, emulates condensates composed of extremely heavy atoms, as well as those with opposite signs of the effective atomic masses in the two components. Stable localized composite states of miscible and immiscible types are constructed. The effect of the SOC on the immiscibility-miscibility transition in the localized complexes, which emulates the phase transition between insulating and conducting states in semiconductors, is studied.
KW - discrete soliton complexes
KW - miscibilityimmiscibility transition
KW - spinorbit coupling
KW - two component BEC
UR - http://www.scopus.com/inward/record.url?scp=84924758318&partnerID=8YFLogxK
U2 - 10.1088/0953-4075/48/6/065301
DO - 10.1088/0953-4075/48/6/065301
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AN - SCOPUS:84924758318
SN - 0953-4075
VL - 48
JO - Journal of Physics B: Atomic, Molecular and Optical Physics
JF - Journal of Physics B: Atomic, Molecular and Optical Physics
IS - 6
M1 - 065301
ER -