Crítica, Revista Hispanoamericana de Filosofía, Volume 23, number 69, diciembre 1991
El azar en la mecánica cuántica: de Bohr a
Bell
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Sergio Martínez Muñoz
Instituto de Investigaciones Filosóficas
Universidad Nacional Autónoma de México
sfmar@filosoficas.unam.mx
Abstract: Usual interpretations of the quantum theory, beginning with Bohr's
interpretation, consider that randomness in quanlum mechanics arises
from (objeclive) restrictions to our capacity of making precise
measurements of the corresponding state variables. I show that this
assumption is problematic and leaves open important questions concerning
the role and nature of quantum randomness. On the basis of
a concept of state introduced elsewhere and on the basis of a distinction
between the principles of separability and locality in quantum
mechanics, I suggest in this paper a different sense in which quantum
randomness is objective. In order to carry out the proposed task
a distinction is made between two different types of objective randomness.
Objective epistemic randomness arises from the limitations
that the physical structure of the world imposes upon our possibilities
of coming to know (measure) this structure. Objective nonepistemic
randomness or systemic randomness is to be expressed in terms of a
state description in a fundamental theory of physics. It is shown that
the nonBoolean structure of properties of quantum theory, as this
structure has been constructed and interpreted in Martínez 1991a,
can be inlerpreled as an expression of the nonseparability of the
theory, Thus, the irreducibility of the transition probabilities that
generate the nonBoolean structure of properties can be interpreted
in this way as systemic randomness. In the case of quantum mechanics
systemic randomness and nonseparability are two sides of the
same coin.
Keywords:
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