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Why does the beam splitter create superposition?

Beam splitters crucially have an (internal) interface between the materials with 2 diffraction indices. (Although depending on the beam splitter it can be the same material ordered differently, but ...
mausi's user avatar
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Why does the beam splitter create superposition?

The question is about different paths to take, but there are always different paths! From the moment when the input state is created (probably an electron wave or light wave coming from some atom) it ...
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Elasticity and Hooke's law: who is applying the force?

In the diagrams you have shown, we regard x as an embedded material coordinate inscribed within the beam. It identifies, for all time, the set of material points at a given cross section. Thus, the ...
Chet Miller's user avatar
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Elasticity and Hooke's law: who is applying the force?

You are basically correct. Internal stresses in the beam will be communicated from one infinitesimal element to the next as you describe. For the purposes of longitudinal vibrations you can think of ...
gandalf61's user avatar
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