Ultrasmall double junction in terms of orthogonal polynomials
  The ``orthodox theory'' of a single electron double junction is dealt with. It is shown that the stationary solution of the underlying master equation allows the construction of any time-dependent solution in terms of orthogonal polynomials. The approach pays off if the stationary solution becomes simple. Two special cases are considered. We use the time-dependent solution to calculate the current noise in these cases. 
Heinz-Olaf M\"uller (1), Andreas H\"adicke (2), Ulrik Hanke (1) and K.   A. Chao (1) ((1) Norwegian University of Science an...