Fig. 6: Negative feedback effect in electric dipole superfluids.

Schematic figures of (a) externally applied magnetic field and (b) the electromagnetic response of electric dipoles, which correspond to Fig. 2 for magnetic dipoles. An external magnetic field Bext (orange) induce effective vector potential Ap (purple) of HMW phase, resulting negative pseudo-magnetic field Bp < 0. The electric dipole experiences Lorentz force from the pseudo-magnetic field and perform cyclotron motion (gray). The moving electric dipole induces a magnetization M, and they generate additional magnetic field Bint, showing negative feedback effect Bext ⋅ Bint < 0.