Nonthermal broadening in the conductance of double quantum dot structures (bibtex)

by Oroszlány, L, Kormányos, A, Koltai, J, Cserti, J and Lambert, C J

Abstract:

We study the transport properties of a double quantum dot (DQD) molecule at zero and at finite temperature. The properties of the zero-temperature conductance depend on whether the level attraction between the symmetric and antisymmetric states of the DQD, produced by the coupling to the leads, exceeds or not the interdot tunneling. For finite temperature, we find a remarkable nonthermal broadening effect of the conductance resonance when the energy levels of the individual dots are detuned.

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Reference:

Nonthermal broadening in the conductance of double quantum dot structures (Oroszlány, L, Kormányos, A, Koltai, J, Cserti, J and Lambert, C J), In Physical Review B, volume 76, 2007.

Bibtex Entry:

@ARTICLE{ISI:000248540000071,
  author = {Oroszlány, L and Kormányos, A and Koltai, J and Cserti, J and Lambert,
	C J},
  title = {Nonthermal broadening in the conductance of double quantum dot structures},
  journal = {Physical Review B},
  year = {2007},
  volume = {76},
  pages = {045318},
  number = {4},
  abstract = {We study the transport properties of a double quantum dot (DQD) molecule
	at zero and at finite temperature. The properties of the zero-temperature
	conductance depend on whether the level attraction between the symmetric
	and antisymmetric states of the DQD, produced by the coupling to
	the leads, exceeds or not the interdot tunneling. For finite temperature,
	we find a remarkable nonthermal broadening effect of the conductance
	resonance when the energy levels of the individual dots are detuned.},
  doi = {10.1103/PhysRevB.76.045318},
  issn = {1098-0121},
  keywords = {Transport ; quantum dot},
  mount = {JUL},
  unique-id = {ISI:000248540000071},
  url = {http://link.aip.org/link?prb/76/045318/pdf}
}