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Observation of unitary conductance for resonant tunneling with dissipation

Publication ,  Conference
Mebrahtu, H; Borzenets, I; Bomze, Y; Finkelstein, G
Published in: Journal of Physics: Conference Series
January 1, 2012

We investigate tunneling through a resonant level formed in a carbon nanotube quantum dot contacted by resistive metal wires. These contacts create a dissipative environment for the electrons tunneling across the nanotube, thus suppressing the tunneling rate. We study the shape of the resonant peak in the nanotube conductance, with the expectation that the peak width and height, both dependent on the tunneling rate, will be suppressed. Instead, we find that the behavior crucially depends on the ratio of the tunneling rates from the resonant level to the two contacts. We discuss the implication of our findings for a boundary quantum phase transition in this system. © Published under licence by IOP Publishing Ltd.

Duke Scholars

Published In

Journal of Physics: Conference Series

DOI

EISSN

1742-6596

ISSN

1742-6588

Publication Date

January 1, 2012

Volume

400

Issue

PART 4

Related Subject Headings

  • 51 Physical sciences
  • 0299 Other Physical Sciences
  • 0204 Condensed Matter Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
 

Citation

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Mebrahtu, H., Borzenets, I., Bomze, Y., & Finkelstein, G. (2012). Observation of unitary conductance for resonant tunneling with dissipation. In Journal of Physics: Conference Series (Vol. 400). https://doi.org/10.1088/1742-6596/400/4/042007
Mebrahtu, H., I. Borzenets, Y. Bomze, and G. Finkelstein. “Observation of unitary conductance for resonant tunneling with dissipation.” In Journal of Physics: Conference Series, Vol. 400, 2012. https://doi.org/10.1088/1742-6596/400/4/042007.
Mebrahtu H, Borzenets I, Bomze Y, Finkelstein G. Observation of unitary conductance for resonant tunneling with dissipation. In: Journal of Physics: Conference Series. 2012.
Mebrahtu, H., et al. “Observation of unitary conductance for resonant tunneling with dissipation.” Journal of Physics: Conference Series, vol. 400, no. PART 4, 2012. Scopus, doi:10.1088/1742-6596/400/4/042007.
Mebrahtu H, Borzenets I, Bomze Y, Finkelstein G. Observation of unitary conductance for resonant tunneling with dissipation. Journal of Physics: Conference Series. 2012.
Journal cover image

Published In

Journal of Physics: Conference Series

DOI

EISSN

1742-6596

ISSN

1742-6588

Publication Date

January 1, 2012

Volume

400

Issue

PART 4

Related Subject Headings

  • 51 Physical sciences
  • 0299 Other Physical Sciences
  • 0204 Condensed Matter Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics