Q&A: Quantum Theory
Quantum Theory
Question
I’m reading the book The Science of Freedom, and I didn’t understand what makes an ordinary wave different from an electron. Why is it that only in the case of an electron you can’t check where it will be, whereas with another wave you can? Is it because the electron can also behave like a particle? After all, if you don’t measure it with a detector, it behaves like a wave, so if it isn’t measured by a detector, can’t you know its location the way you can with another wave? I’d appreciate an explanation.
Answer
I already answered this, and I don’t know where it disappeared to. There is no difference between a photon and an electron in this respect. If they are in a wave state, they have no location, and if they are in a particle state, they do.