External electromagnetic effects on the spin transport of the open one-dimensional single-band Fermi-Hubbard lattice

Experimentally, conductivities help probe phases of matter among strongly correlated systems. In this study, the effect of external electromagnetic field on the spin conductivity of an open one-dimensional single-band Fermi-Hubbard lattice is calculated with the assumption of linear response. It is shown that for repulsive two-particle interactions, the spin conductivity can be optimized at finite low-temperature when the lattice is subject to a strong magnetic field and a more positive electric field.