Time-dependent single-electron transport through quantum dots

Details Time-dependent single-electron transport through quantum dots Time-dependent single-electron transport through quantum dots

Mar 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006rpph...69..759f&link_type=abstract

Reports on Progress in Physics, Volume 69, Issue 3, pp. 759-796 (2006).

Physics

43

Scientific paper

We describe time-dependent single-electron transport through quantum dots in the Coulomb blockade regime. Coherent dynamics of a single charge qubit in a double quantum dot is discussed with full one-qubit manipulation. Strength of decoherence is controlled with the applied voltage, but uncontrolled decoherence arises from electron-phonon coupling and background fluctuations. Then energy-relaxation dynamics is discussed for orbital and spin degree of freedom in a quantum dot. The electron-phonon interaction and spin-orbit coupling can be investigated as the dissipation problem. Finally, charge detection measurement is presented for statistical analysis of single-electron tunnelling transitions and for a sensitive qubit read-out device.

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