Thursday, April 7, 2016

quantum mechanics - Decrease of uncertainty of momentum with increase of width of infinite well in QM(intuition)


Why does the uncertainty in the momentum decrease with the increase of the width for an energy eigenstate in the classic problem if the infinite well in Quantum Mechanics? I have worked out the mathematics but i have not intuitively understood it.




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classical mechanics - Moment of a force about a given axis (Torque) - Scalar or vectorial?

I am studying Statics and saw that: The moment of a force about a given axis (or Torque) is defined by the equation: $M_X = (\vec r \times \...