Quantum energy flow in mesoscopic dielectric structures

Details Quantum energy flow in mesoscopic dielectric structures Quantum energy flow in mesoscopic dielectric structures

1998-03-26

arxiv.org/abs/cond-mat/9803319v1

Phys. Rev. B 59, 4992 (1999)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

20 pages, 2 figures. Submitted to Phys. Rev. B

Scientific paper

10.1103/PhysRevB.59.4992

We investigate the phononic energy transport properties of mesoscopic, suspended dielectric wires. The Landauer formula for the thermal conductance is derived and its universal aspects discussed. We then determine the variance of the energy current in the presence of a steady state current flow. In the final part, some initial results are presented concerning the nature of the temperature fluctuations of a mesoscopic electron gas thermometer due to the absorption and emission of wire phonons.

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