Quantum Mechanics of Atoms

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Quantum Mechanics of Atoms
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The Wave Function and Its Interpolation
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In quantum mechanics the amplitude of a particle
wave is called the wave function and is given the
symbol Y.
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If we are dealing only with one photon At any
point the square of the electric field strength
is a measure of the probability that a photon
will be at that location.
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For a single particle Y2 at a certain point in
space and time represents the probability of
finding the electron at the given position and
time.
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Important there is no way to predict where one
electron would hit the screen. We could predict
only probabilities.
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The main point of this discussion is this if we
treat electrons as if they were waves, then Y
represents the wave amplitude. If we treat them
as particles, then we must treat them on
probabilistic basis.
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The Heisenberg Uncertainty Principle
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The act of observing produces a significant
uncertainty in either the position or the
momentum of electron.
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Position uncertainty of a baseball
What is the uncertainty in position, imposed by
the uncertainty principle, of a 150-g baseball
thrown at 42-1 m/s? Should the umpire be
concerned? Can he use Heisenberg as an excuse?