  Quantum mechanics dictates the band-structure of materials that is essential
for functional electronic components. With increased miniaturization of devices
it becomes possible to exploit the full potential of quantum mechanics through
the principles of superpositions and entanglement. We propose a new class of
quantum rectifiers that can leverage entanglement to dramatically increase
performance by coupling two small spin chains through an effective double-slit
interface. Simulations show that rectification is enhanced by several orders of
magnitude even in small systems and should be realizable using several of the
quantum technology platforms currently available.
