Phase transitions in full counting statistics for periodic pumping

Details Phase transitions in full counting statistics for periodic pumping Phase transitions in full counting statistics for periodic pumping

2010-07-16

arxiv.org/abs/1007.2687v1

Europhys.Lett.92:37008,2010

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 4 figures

Scientific paper

10.1209/0295-5075/92/37008

We discuss the problem of full counting statistics for periodic pumping. The probability generating function is usually defined on a circle of the "physical" values of the counting parameter, with its periodicity corresponding to charge quantization. The extensive part of the generating function can either be an analytic function on this circle or have singularities. These two cases may be interpreted as different thermodynamic phases in time domain. We discuss several examples of phase transitions between these phases for classical and quantum systems. Finally, we prove a criterion for the "analytic" phase in the problem of a quantum pump for noninteracting fermions.

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