Shot Noise Detection on a Carbon Nanotube Quantum Dot

Details Shot Noise Detection on a Carbon Nanotube Quantum Dot Shot Noise Detection on a Carbon Nanotube Quantum Dot

2005-10-27

arxiv.org/abs/cond-mat/0510745v1

Phys. Rev. Lett 96, 026803 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures, accepted for publication in PRL

Scientific paper

10.1103/PhysRevLett.96.026803

An on-chip detection scheme for high frequency signals is used to detect noise generated by a quantum dot formed in a single wall carbon nanotube. The noise detection is based on photon assisted tunneling in a superconductor-insulator-superconductor junction. Measurements of shot noise over a full Coulomb diamond are reported with excited states and inelastic cotunneling clearly resolved. Super-Poissonian noise is detected in the case of inelastic cotunneling.

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