"The
things that interfere in quantum mechanics are not particles. They are
probability amplitudes for certain events." So says Roy J. Glauber in a
letter to the editor of the American
Journal of Physics, printed in the January 1995 issue. Glauber was describing
how Dirac's writing that each photon
interferes only with itself, and thus interference between different photons
can never occur, is not strictly correct. So there. The great ones can get it
wrong too, and frequently do, so don't worry too much about your own little
pultritudinal mistakes.
2-D complex vector space is still waiting in the wings to be written about...
2-D complex vector space is still waiting in the wings to be written about...