Positive solutions for a weakly coupled nonlinear by Maia L. A., Montefusco E., Pellacci B.

By Maia L. A., Montefusco E., Pellacci B.

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In conditions in which the effect of the quantum potential is negligible, quantum mechanics gives rise to Newtonian mechanics as a limiting case, as previously noted. In this way, one obtains an elegant means of resolving the notoriously difficult problem in quantum mechanics, namely the relation between the quantum level and the classical level.

The usual idea is that quantum theory is the more accurate, general, and fundamental theory. Classical physics can then be seen as a special limiting case that can be derived from quantum theory and that works approximately well in certain domains. However, things were not that simple in standard quantum theory. For as we saw, according to the usual interpretations, the quantum theoretical description of reality is either minimal or ambiguous. Either there is no view of quantum reality beyond measurements at all, or else quantum reality consists of systems that are ambiguously sometimes waves, sometimes particles.

But as we will see later, enfoldment is taking place in a wide range of domains, and actually right there in front of you. Think of the small region of space where your eye is placed. In this region, there is a movement of electromagnetic waves (light waves) that carries the information you use as the basis for constructing your visual experience. This movement somehow contains or “enfolds” information about the whole room, or if you happen to be watching the night sky, about the whole universe of space and time.

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