Bohmian Mechanics
Bohmian mechanics is the most naively obvious embedding imaginable of
Schroüdinger equation
into a completely coherent physical theory. It describes a world in which
particles move in a highly non-Newtonian sort of way, one which may at
first appear to have little to do with the spectrum of predictions of
quantum mechanics. However, this deterministic theory of
particles in motion
completely accounts for all the phenomena of nonrelativistic quantum
mechanics, from spectral lines to interference effects, and it does so in a
completely ordinary manner. It was first presented by David Bohm more than forty
years ago. Moreover, a preliminary version of this theory was
presented by de Broglie almost at the inception of quantum mechanics. Its
principal advocate for the past three decades was John Bell:
Is it not clear from the smallness of the scintillation on
the screen that we have to do with a particle? And is it not clear, from
the diffraction and interference patterns, that the motion of the particle
is directed by a wave? De Broglie showed in detail how the motion of a
particle, passing through just one of two holes in screen, could be
influenced by waves propagating through both holes. And so influenced
that the particle does not go where the waves cancel out, but is attracted
to where they cooperate. This idea seems to me so natural and simple, to
resolve the wave-particle dilemma in such a clear and ordinary way, that
it is a great mystery to me that it was so generally ignored.
J.S. BELL
Speakable and Unspeakable in Quantum Mechanics
J.S. BELL
Speakable and Unspeakable in Quantum Mechanics
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