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arXiv · 0706.2635

Magnetic flux detection with an Andreev Quantum Dot

I. A. Sadovskyy·G. B. Lesovik·G. Blatter
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Abstract

The charge of the subgap states in an Andreev quantum dot (AQD; this is a quantum dot inserted into a superconducting loop) is very sensitive to the magnetic flux threading the loop. We study the sensitivity of this device as a function of its parameters for the limit of a large superconducting gap. In our analysis, we account for the effects of a weak Coulomb interaction within the dot. We discuss the suitability of this setup as a device detecting weak magnetic fields.

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I. A. Sadovskyy, G. B. Lesovik, G. Blatter. 2007-09-21. Magnetic flux detection with an Andreev Quantum Dot. https://doi.org/10.1134/s0021364007150131

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