dc.contributor.author | Roy, Dibyendu | eng |

dc.contributor.author | Vignale, Giovanni, 1957- | eng |

dc.contributor.author | Di Ventra, Massimiliano | eng |

dc.date.issued | 2011 | eng |

dc.description | http://arxiv.org/PS_cache/arxiv/pdf/1010/1010.2959v2.pdf | eng |

dc.description.abstract | It is well known that the viscosity of a homogeneous electron liquid diverges in the limits of zero frequency and zero temperature. A nanojunction breaks translational invariance and necessarily cuts off this divergence. However, the estimate of the ensuing viscosity is far from trivial. Here, we propose an approach based on a Kramers-Kr\"onig dispersion relation, which connects the zero- frequency viscosity, $\eta(0)$, to the high-frequency shear modulus, $\mu_{\infty}$, of the electron liquid via $\eta(0) =\mu_{\infty} \tau$, with $\tau$ the junction-specific momentum relaxation time. By making use of a simple formula derived from time-dependent current-density functional theory we then estimate the many-body contributions to the resistance for an integrable junction potential and find that these viscous effects may be much larger than previously suggested for junctions of low conductance. | eng |

dc.description.sponsorship | DR and MD acknowledge support from the DOE grant
DE-FG02-05ER46204 and UC Laboratories, GV from
DOE under Grant No. DE-FG02-05ER46203. | eng |

dc.identifier.citation | arXiv:1010.2959v2 | eng |

dc.identifier.uri | http://hdl.handle.net/10355/9989 | eng |

dc.language | English | eng |

dc.publisher | arXiv | eng |

dc.relation.ispartofcollection | University of Missouri--Columbia. College of Arts and Sciences. Department of Physics and Astronomy. Physics and Astronomy publications | eng |

dc.subject.lcsh | Condensed matter | eng |

dc.subject.lcsh | Nanoscience | eng |

dc.subject.lcsh | Electron configuration | eng |

dc.subject.lcsh | Fluid dynamics | eng |

dc.title | Viscous corrections to the resistance of nano-junctions: a dispersion relation approach | eng |

dc.type | Article | eng |