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Thinking Inside The Box: some experimental measurements in
Thinking Inside The Box: some experimental measurements in

... What are the odds that the particle was in a given box (e.g., box B)? It had to be in B, with 100% certainty. ...
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... But when I think how infinitely little is all that I have done I cannot feel pride; I only see the great kindness of my scientific comrades, and of all my friends in crediting me for so much. One word characterises the most strenuous of the efforts for the advancement of science that I have made per ...
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The Learnability of Quantum States

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Can Bohmian Mechanics Be Made Background Independent?

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The Learnability of Quantum States

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ARE THERE REALLY ELECTRONS? EXPERIMENT AND REALITY

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QUANTUM HETERODOXY: REALISM AT THE PLANK LENGTH Q

... The operators in (1), (2) and (3) are rather misleadingly named for they do not give position, momentum or energy of any system—rather they give the expectation values for these quantities. Thus they are mean values and not necessarily what one will find if one makes a measurement. This fact was obs ...
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Renormalization



In quantum field theory, the statistical mechanics of fields, and the theory of self-similar geometric structures, renormalization is any of a collection of techniques used to treat infinities arising in calculated quantities.Renormalization specifies relationships between parameters in the theory when the parameters describing large distance scales differ from the parameters describing small distances. Physically, the pileup of contributions from an infinity of scales involved in a problem may then result in infinities. When describing space and time as a continuum, certain statistical and quantum mechanical constructions are ill defined. To define them, this continuum limit, the removal of the ""construction scaffolding"" of lattices at various scales, has to be taken carefully, as detailed below.Renormalization was first developed in quantum electrodynamics (QED) to make sense of infinite integrals in perturbation theory. Initially viewed as a suspect provisional procedure even by some of its originators, renormalization eventually was embraced as an important and self-consistent actual mechanism of scale physics in several fields of physics and mathematics. Today, the point of view has shifted: on the basis of the breakthrough renormalization group insights of Kenneth Wilson, the focus is on variation of physical quantities across contiguous scales, while distant scales are related to each other through ""effective"" descriptions. All scales are linked in a broadly systematic way, and the actual physics pertinent to each is extracted with the suitable specific computational techniques appropriate for each.
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