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Standard quantum mechanics unquestionably violates the separability principle that classical physics (be it point-like analytic,
statistical, or field-theoretic) accustomed us to consider as valid. In this paper, quantum nonseparability is viewed as a
consequence of the Hilbert-space quantum mechanical formalism, avoiding thus any direct recourse to the ramifications of Kochen-Specker’s
argument or Bell’s inequality. Depending on the mode of assignment of states to physical systems – unit state vectors versus
non-idempotent density operators – we distinguish between strong/relational and weak/deconstructional forms of quantum nonseparability.
The origin of the latter is traced down and discussed at length, whereas its relation to the all important concept of potentiality
in forming a coherent picture of the puzzling entangled interconnections among spatially separated systems is also considered.
Finally, certain philosophical consequences of quantum non-separability concerning the nature of quantum objects, the question
of realism in quantum mechanics, and possible limitations in revealing the actual character of physical reality in its entirety
are explored. 相似文献
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David Grandy 《Journal for General Philosophy of Science》2002,33(2):369-379
Light is puzzling in modern physics–witness wave-particle duality, the two-slit experiment, and the invariant speed of light.
These puzzles are not intrinsic to light but arise from overly narrow views of light. Disregarding the expansive, unitary
nature of light that informs everyday experience, modern physics treats light as if it were self-bounded and separable. Further,
physics assumes that light is not complicit with observations of light, that the two are separable. By likening light to light-illuminated
entities, these attitudes set the stage for puzzles. When,however, conceptions of light are aligned with visual experience,
those puzzles become occasions of understanding.This is because visual experience already embodies that aspect of light which
physics finds so anomalous: nonseparability. Light's interactive vastness shows up wherever light shows up, and because no
observer can back away from light or step outside its integrative embrace, different parts of light (photons) cannot be lifted
out ofthe observation as distinct – i.e., distinctly-observed – entities.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
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