Quantization and Fractional Quantization of Currents in Periodically Driven Stochastic Systems II: Full Counting Statistics

Details Quantization and Fractional Quantization of Currents in Periodically Driven Stochastic Systems II: Full Counting Statistics Quantization and Fractional Quantization of Currents in Periodically Driven Stochastic Systems II: Full Counting Statistics

2011-12-02

arxiv.org/abs/1112.0528v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

18 pages, 5 figures

Scientific paper

We study Markovian stochastic motion on a graph with finite number of nodes and adiabatically periodically driven transition rates. We show that, under general conditions, the quantized currents that appear at low temperatures are a manifestation of topological invariants in the counting statistics of currents. This observation provides an approach for classification of topological properties of the counting statistics, as well as for extensions of the phenomenon of the robust quantization of currents at low temperatures to the properties of the counting statistics which persist to finite temperatures.

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