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Double-Dot Quantum Ratchet Driven by an Independently Biased Quantum Point Contact

Khrapai, V. S., Ludwig, S., Kotthaus, Jörg P., Tranitz, Hans-Peter and Wegscheider, Werner (2006) Double-Dot Quantum Ratchet Driven by an Independently Biased Quantum Point Contact. Physical Review Letters 97 (17), p. 176803.

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Abstract

We study a double quantum dot (DQD) coupled to a strongly biased quantum point contact (QPC), each embedded in independent electric circuits. For weak interdot tunneling we observe a finite current flowing through the Coulomb blockaded DQD in response to a strong bias on the QPC. The direction of the current through the DQD is determined by the relative detuning of the energy levels of the two ...

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Item type:Article
Date:27 October 2006
Institutions:Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider
Identification Number:
ValueType
10.1103/PhysRevLett.97.176803DOI
Related URLs:
URLURL Type
http://link.aps.org/doi/10.1103/PhysRevLett.97.176803Publisher
Classification:
NotationType
73.23.−b, 73.63.KvPACS
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Unknown
Created at the University of Regensburg:Unknown
Item ID:12209
Owner only: item control page

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