Question

1. Describe two important aspects of the de Broglie-Bohm (pilot wave) theory that
differ from the Copenhagen interpretation of the double-slit experiment.

Answer 1

1) In Pilot wave theory particles have real trajectories unlike in the Copenhagen interpretation, where there is no sense to talk about trajectories.

2) In pilot wave theory the wave nature of the particle is attributed to the pilot wave which guides the motion of the particle as it passes through one of the slits. In the Copenhagen interpretation one talks of probability waves that interferes to form the interference pattern and there is no way of knowing through which slit a particle passes through.