  We consider a one-dimensional spin-orbit-coupled nanowire quantum dot, driven
by external electric and magnetic fields, and theoretically formulate an
electric mechanism to interfere its electron orbits. Owing to the existence of
spin-orbit coupling and a pulsed electric field, different spin-orbit states
are shown to interfere with each other, generating intriguing
interference-resonant patterns. We also reveal that an in-plane magnetic field
does not affect the strength interval of any neighboring resonant peaks, but
contributes a weak shift of each peak, which is sensitive to the direction of
the magnetic field. We find that this proposed external-field-controlled scheme
should be regarded as a new type of quantum-dot-based interferometry. Finally,
this interferometry has an important application in precisely measuring
relative experimental parameters, such as the Rashba and Dresselhaus
spin-orbit-coupling strengths, as well as the Lande-g factor.
