Quantum Charge Fluctuations in a Superconducting Grain

Details Quantum Charge Fluctuations in a Superconducting Grain Quantum Charge Fluctuations in a Superconducting Grain

2005-02-28

arxiv.org/abs/cond-mat/0502657v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

12 pages, 3 figures

Scientific paper

10.1103/PhysRevB.72.104507

We consider charge quantization in a small superconducting grain that is contacted by a normal-metal electrode and is controlled by a capacitively coupled gate. At zero temperature and zero conductance $G$ between the grain and the electrode, the charge $Q$ as a function of the gate voltage $V_g$ changes in steps. The step height is $e$ if $\Delta

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