We present a recursive method for calculating
zero-frequency current cumulants of very high or-
ders for quantum stochastic processes described
by non-Markovian generalized master equations
(GME) [1,2]. Within the same framework, the
finite-frequency noise can also be evaluated. As
a specific example, we consider charge transport
through two coherently coupled Coulomb blockade
quantum dots embedded in a dissipative environ-
ment. For high orders, the cumulants show surpri-
sing oscillations as functions of the level detuning.
Using mathematical properties of derivatives in the complex plane  we show that these oscillations are in fact universal and are expected to occur as functions of almost any parameter in a wide class of stochastic processes . We present the first experimental evidence of universal oscillations in electron transport through a single quantum dot .
 C. Flindt, T. Novotný, A. Braggio, M. Sassetti, and A.-P. Jauho, Phys. Rev. Lett. 100, 150601 (2008)
 C. Flindt, T. Novotný, A. Braggio, and A.-P. Jauho, in preparation (2008)
 M. V. Berry, Proc. R. Soc. A 461, 1735 (2005)
 C. Flindt, C. Fricke, F. Hohls, T. Novotný, K. Netočný, T. Brandes, and R. J. Haug, submitted (2008)