We introduce a pedagogical discussion on Bohmian mechanics and its physical
implications in connection with the important role played by the quantum phase
in the dynamics of quantum processes. In particular, we focus on phenomena such
as quantum coherence, diffraction, and interference, due to their historical
relevance in the development of the quantum theory and their key role in a
myriad of fundamental and applied problems of current interest.Comment: 10 pages, 5 figure