A one-to-one correspondence is established between linearized space-time
metrics of general relativity and the wave equations of quantum mechanics.
Also, the key role of boundary conditions in distinguishing quantum mechanics
from classical mechanics will emerge naturally from the procedure. Finally, we
will find that the methodology will enable us to introduce not only test
charges but also test masses by means of gauges.Comment: 24 pages, to be published in Foundation of Physics (IARD proc.