Charge Fluctuations in the Edge States of N-S hybrid Nano-Structures

Details Charge Fluctuations in the Edge States of N-S hybrid Nano-Structures Charge Fluctuations in the Edge States of N-S hybrid Nano-Structures

1999-11-05

arxiv.org/abs/cond-mat/9911076v1

J. Phys.: Condens. Matter 11, L563 (1999)

Physics

Condensed Matter

Superconductivity

4 pages with 1 figure. In published version the high magnetic field dynamics of the holes is treated incorrectly. An erratum i

Scientific paper

10.1088/0953-8984/11/50/102

In this work we show how to calculate the equilibrium and non-equilibrium charge fluctuations in a gated normal mesoscopic conductor which is attached to one normal lead and one superconducting lead. We then consider an example where the structure is placed in a high magnetic field, such that the transport is dominated by edge states. We calculate the equilibrium and non-equilibrium charge fluctuations in the gate, for a single edge state, comparing our results to those for the same system, but with two normal leads. We then consider the specific example of a quantum point contact and calculate the charge fluctuations in the gate for more than one edge state.

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