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Quantum Mechanical Tunnelling.
Member rating: No Rating | Words: | Submitted: Wed Oct 20 2004
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Quantum Mechanical Tunnelling The infinite potential walled particle in a box theory does not allow any of the wave function to escape the box as it would have to have more than infinity energy to cross the barrier. Allowing the potential energy well to be a finite number has the effect of making it possible for the wave function of a particle that is trapped in this potential well, to partially escape and thus have a presence outside the confines of the box. The wave function can transverse the potential barrier, although it will decay exponentially through the barrier. Assuming that the wave function does not totally decay away before the end of the barrier, the particle can have a physical presence on the other side of the potential barrier. If the potential barrier is long range, then the wave function will decay away exponentially and tend towards zero. Upon reaching...
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