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Magnetic flux detection with an Andreev Quantum Dot

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 نشر من قبل Ivan Sadovsky
 تاريخ النشر 2007
  مجال البحث فيزياء
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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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