  We investigate the one-dimensional (1D) and two-dimensional (2D)reduction of
a quantum field theory starting from the three-dimensional (3D) many-body
Hamiltonian of interacting bosons with spin-orbit (SO) and Rabi couplings. We
obtain the effective time-dependent 1D and 2D nonpolynomial Heisenberg
equations for both repulsive and attractive signs of the inter-atomic
interaction. Our findings show that in case in which the many-body state
coincides with the Glauber coherent state,the 1D and 2D Heisenberg equations
become 1D and 2D nonpolynomial Schr\"odinger equations (NPSEs). These models
were derived in a mean-field approximation from 3D Gross-Pitaevskii equation
(GPE), describing a Bose-Einstein condensate (BEC)with SO and Rabi couplings.
In the present work self-repulsive and self-attractive localized solutions of
the 1D NPSE and the 1D GPE are obtained in a numerical form. The combined
action of SO and Rabi couplings produces conspicuous sidelobes on the density
profile, for both signs of the interaction. In the case of the attractive
nonlinearity, an essential result is the possibility of getting an unstable
condensate by increasing of SO coupling.
