Nonequilibrium noise in transport across a tunneling contact between ν=2/3 fractional quantum Hall edges

Shtanko, Oles' and Snizhko, Kyrylo and Cheianov, Vadim (2014) Nonequilibrium noise in transport across a tunneling contact between ν=2/3 fractional quantum Hall edges. Physical Review B: Condensed Matter and Materials Physics, 89. ISSN 1098-0121

[img]
Preview
PDF (PhysRevB.89.125104)
PhysRevB.89.125104.pdf - Published Version
Available under License Creative Commons Attribution.

Download (1MB)

Abstract

In a recent experimental paper [Bid et al., Nature 466, 585 (2010)] a qualitative confirmation of the existence of upstream neutral modes at the ν=23 quantum Hall edge was reported. Using the chiral Luttinger liquid theory of the quantum Hall edge we develop a quantitative model of the experiment of Bid et al. A good quantitative agreement of our theory with the experimental data reinforces the conclusion of the existence of the upstream neutral mode. Our model also enables us to extract important quantitative information about nonequilibrium processes in Ohmic and tunneling contacts from the experimental data. In particular, for ν=23, we find a power-law dependence of the neutral mode temperature on the charge current injected from the Ohmic contact.

Item Type:
Journal Article
Journal or Publication Title:
Physical Review B: Condensed Matter and Materials Physics
Additional Information:
Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
ID Code:
68930
Deposited By:
Deposited On:
20 Mar 2014 12:01
Refereed?:
Yes
Published?:
Published
Last Modified:
10 Jul 2020 03:19