But let us put off worrying about that equation and see what we can do with our knowledge of the wavelength of a “free” particle-- one moving in a region where U(x) is constant.
But let us put off worrying about that equation and see what we can do with our knowledge of the wavelength of a “free” particle-- one moving in a region where U(x) is constant.
If the particle has to be held in the box, it has to have a rigid wall, so U(x) has to go to infinity outside, then we should keep it inside...