A Critique of the Classical Limit Problem of Quantum Mechanics

Mario Castagnino, Manuel Gadella

O. G. Mishnev

Donald H. Kobe

Vesselin Noninski

An example of a classical system violating Bell’s inequalities is discussed. Existence of a classical system violating Bell’s inequalities takes away the “mysterious ” property usually called “non-locality ” which according to some characterizes quantum-mechanical systems. In recent years there has been an explosion of research on consequences from what initially had been an attempt by Einstein, Podolsky and Rosen (EPR)[1] to put quantum mechanics (QM) in question. Turning the tide is mainly due to the theoretical paper of Bell [2] discussing a two -spin particle system proposed by Bohm [3] as a special case of the system discussed in the initial critique by EPR [1]. Despite the initial questions posed by EPR the problems regarding QM are usually considered nowadays as settled and questioning it is considered highly unusual. Furthermore, claimed

Benjamin W. Schumacher, Michael D. Westmoreland

We present a critique of the many-world interpretation of quantum mechanics, based on different "pictures" that describe the time evolution of an isolated quantum system. Without an externally imposed frame to restrict these possible pictures, the theory cannot yield non-trivial interpretational statements. This is analogous to Goodman's famous "grue-bleen" problem of language and induction. Using a general framework applicable to many kinds of dynamical theories, we try to identify the kind of additional structure (if any) required for the meaningful interpretation of a theory. We find that the "grue-bleen" problem is not restricted to quantum mechanics, but also affects other theories including classical Hamiltonian mechanics. For all such theories, absent external frame information, an isolated system has no interpretation.

Jorge Bernal, A. Martín-Ruiz, J. C. García-Melgarejo