Interpretations of
Quantum Physics
Implications of
Quantum Physics

24. The Ensemble or Statistical Interpretation.

The ensemble or statistical interpretation is unsatisfactory because it is vague and does not take advantage of all we know about quantum physics.

There are interpretations (championed by Einstein) in which it is assumed that quantum physics gives only statistical information. It is assumed that there is a collection, or ensemble, of copies of the physical system and our perceived world corresponds to only one of them. The wave function then gives statistical information about which one of these copies corresponds to our actual world.

But such interpretations do not say what the actual world is ‘made of.’
And they do not explain why the copies change in time in a way that is consistent with the changes in the wave function. That is, the dynamics of the actual copies of the physical world are not specified. In my opinion, these schemes are not well-formulated enough to say whether or not they constitute a valid interpretation.

There are also ‘transitional’ interpretations which suppose quantum physics gives only information about how we get from one state of matter to another, but they do not say anything about the nature of the matter itself. I believe such interpretations are unnecessarily conservative. Neither ensemble nor ‘transitional’ interpretations give sufficient weight to the non-statistical or ‘absolute’ facts that quantum physics itself implies matter has mass, charge, quantized spin (Mass, Spin, and Charge), and is perceived as localized (Localization); and that it gives accurate energy levels for composite systems.

understanding quantum physics
understanding quantum physics by casey blood