Physics

Arvin Ash poses a macro scale parallel to entanglement (while using a Stern-Gerlach apparatus): Vid: Ash highlights, of course, that once entangled, particles have superposed wave functions leading to inherent non locality. So, spooky action at a distance overlooks that non locality. And as with the gloves, Alice needs to know her particle is part of an entangled pair to freely infer Bob got the other one, so to speak. Information has not evaded the speed of light limit. Translation,* our concept of space, needs to be er, ah, uh, quantum adjusted. That was already lurking in low intensity beam interference and superposition. KF *PS, added to show certain objectors that “translated” needs not be pernicious. PPS, DV, quantum computing Read More ›

Arvin Ash poses a macro scale parallel to entanglement (while using a Stern-Gerlach apparatus): Vid: Ash highlights, of course, that once entangled, particles have superposed wave functions leading to inherent non locality. So, spooky action at a distance overlooks that non locality. And as with the gloves, Alice needs to know her particle is part of an entangled pair to freely infer Bob got the other one, so to speak. Information has not evaded the speed of light limit. Translation,* our concept of space, needs to be er, ah, uh, quantum adjusted. That was already lurking in low intensity beam interference and superposition. KF *PS, added to show certain objectors that “translated” needs not be pernicious. PPS, DV, quantum computing Read More ›

. . . using standing waves of light, vid: x Here is a snapshot: By setting up standing waves and using an electron beam to interact with it, a map could be imaged on photon location and waves. As an article explains: Until now [–> c 2015], scientists have only ever been able to capture an image of light as either a particle or a wave, and never both at the same time. But a team from the École Polytechnique Fédérale de Lausanne in Switzerland have managed to overcome the obstacles that stood in the way of previous experiments by using electrons to image light in this very strange state.  The key to their success is their unusual experiment design. Read More ›

Here Hossenfelder is an instrumentalist, and emphasises that the superposition is an expression of a probability wave thus a prediction of observations not ultimate truth. Bonus, she brings in entanglement and the concept that it discusses correlated states, using radioactive decay as a case. However, all of this can help us address things like alleged clashes between Quantum Theory and Logic, cf our weak arguments discussion here. Q-Mech, of course, humbles us all. KF

So, here we go: And, the rise of solid state laser pointers makes this sort of exercise so much easier, BUT YOU MUST BE CAREFUL NOT TO GET SUCH A BRIGHT SOURCE INTO YOUR EYE AS THIS MAY CAUSE RETINAL BURNS THUS BLIND SPOTS. (I recall, buying and assembling a kit He-Ne laser to have this exercise for my High School students. We had a ball, using metre sticks stuck to a screen with blu-tack, to observe and measure effects from several metres away.) So, now, what about, electrons: Notice, the pattern here builds up statistically, one spot at a time. Then, HT BA77 way back, here is Dr Quantum: Now, if you think you have it all figured out, Read More ›