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Why does this total current formula true or not?

  1. May 21, 2012 #1
    In condensed matter or nano physics someone use this total current formula for quantum dots:
    J=xJL-(1-x)JR
    Is this true or not and why?
     
  2. jcsd
  3. May 21, 2012 #2
    What is x and what is JL and JR ?
     
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