Dephasing Effect in Photon-Assisted Resonant Tunneling through Quantum Dots

Details Dephasing Effect in Photon-Assisted Resonant Tunneling through Quantum Dots Dephasing Effect in Photon-Assisted Resonant Tunneling through Quantum Dots

2001-03-26

arxiv.org/abs/cond-mat/0103537v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures, to be published in Rapid Communications of Phys. Rev. B

Scientific paper

10.1103/PhysRevB.63.201311

We analyze dephasing in single and double quantum dot systems. The decoherence is introduced by the B\"{u}ttiker model with current conserving fictitious voltage leads connected to the dots. By using the non-equilibrium Green function method, we investigate the dephasing effect on the tunneling current. It is shown that a finite dephasing rate leads to observable effects. The result can be used to measure dephasing rates in quantum dots.

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