What if I had a double slit setup and I was shooting electrons through them. But in the rest frame the slits were to big to bring out the diffraction effect. But then suppose I move by the 2 slits at significant speed to length contract the slits to where diffraction would be eminent. Would i see diffraction or does the wave function change with speed to correct this. I don't know much about QM or QFT. Any help will be appreciated.