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Article about symmetries (math problems)

  1. Aug 17, 2012 #1
    Hi all.

    When I was reading a paper (http://physics.brown.edu/physics/undergradpages/theses/SeniorThesis_tlevine1.pdf) I have had a problem. I don’t understand some equations, namely I don’t understand 2.22 and 2.36. I confused by derivative [itex] \left(\frac{\partial t’}{\partial t}\right)^{\frac{1}{2}}[/itex] in the last (2.36) equation.
    It’s clear for me, that it is mathematical trick, but I don’t know it. I would be happy if you could give me an explanation or a link for some literature.


    Thanks.
     
  2. jcsd
  3. Aug 17, 2012 #2

    mfb

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    2016 Award

    Staff: Mentor

    I think you have to use the given potential and its scaling.

    [itex]q \to \sqrt{\lambda} q[/itex] is equivalent to a scaling of V by 1/λ, and this corresponds to a scaling of [itex]t \to \lambda t[/itex].
    +- some exponents
     
  4. Aug 18, 2012 #3
    thank you, i get it
     
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