## Full counting statistics for voltage

and dephasing probes

### Heidi Förster

University of Geneva, Switzerland

**Friday, May 5th 2006, 15:30**

Seminar room F, Mathematical Physics, Sölvegatan 14A

**Abstract**:

We present a stochastic path integral method to calculate the full
counting statistics of conductors with energy conserving dephasing probes
and dissipative voltage probes. The approach is explained for the
experimentally important case of a Mach-Zehnder interferometer, but is
easily generalized to more complicated setups. For all geometries where
dephasing may be modeled by a single one-channel dephasing probe we prove
that our method yields the same full counting statistics as phase
averaging over a slowly fluctuating phase.

Work in collaboration with S. Pilgram, P. Samuelsson and M. Buttiker