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Optimal electron entangler and single electron source at low temperatures

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 نشر من قبل Yury Sherkunov
 تاريخ النشر 2008
  مجال البحث فيزياء
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Electron transport in mesoscopic contacts at low temperatures is accompanied by logarithmically divergent equilibrium noise. We show that this equilibrium noise can be dramatically suppressed in the case of a tunnel junction with modulated (time-dependent) transparency, and identify the optimal protocol. We show how such a contact could be used either as an optimal electron entangler or as a single-electron source with suppressed equilibrium noise at low temperatures.

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