
 Bohmian Mechanics 
  Bohmian mechanics, which is also called the de BroglieBohm theory, the pilotwave model, and the causal interpretation of quantum mechanics, is a version of quantum theory discovered by Louis de Broglie in 1927 and rediscovered by David Bohm in 1952. 
  Bohmian mechanics is of course as much a counterexample to the KochenSpecker argument for the impossibility of hidden variables as it is to the one of von Neumann. 
  Bohmian mechanics is manifestly nonlocal: The velocity, as expressed in the guiding equation, of any one of the particles of a manyparticle system will typically depend upon the positions of the other, possibly distant, particles whenever the wave function of the system is entangled, i.e., not a product of singleparticle wave functions. 
 plato.stanford.edu /entries/qmbohm (10692 words) 
