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Consider a two slit interference experiment. It is a well known fact that when a detector is placed in front of one of the slits that the pattern disappears. Quantum mechanically the wave function...
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I Know it is demanded by many quantum phenomena, but what does it imply about the underlying structure of the universe? On one hand we have a classical world, entirely non-contextual, and on the...
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If we excite an atom, it de-excites to a lower energy state almost instantaneously(?). Firstly, why does it 'need' to de-excite? Secondly, what makes it de-excite? Suppose I do the experiment in...
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While going through a textbook on quantum optics (by Knight), I came upon parametric down conversion. Although its explained mathematically in the book, it was not clear on the "physics" behind...
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