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Quantum Tunneling from Bent Circular Wire

  1. Oct 30, 2015 #1
    1. The problem statement, all variables and given/known data
    The electron enters a straight pipe of circular cross section (radius r). The tube is bent at a radius R≫r by the angle α and then is aligned back again. Find the probability that the electron will jump out

    2. Relevant equations
    Tunneling probability in WKB approximation.

    3. The attempt at a solution
    Unsure of what the potential should be and the effect that the bend has.
     
  2. jcsd
  3. Oct 30, 2015 #2

    mfb

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    Staff: Mentor

    If that is the full problem statement, it looks odd. You'll have to add many assumptions to get a result.
     
  4. Oct 30, 2015 #3
  5. Oct 30, 2015 #4

    mfb

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    Staff: Mentor

    I guess that is a very short version - it gives an idea of the problem, but it doesn't have the actual numbers necessary to solve it. Same with the other two problems.
     
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