Upstream neutral modes in the fractional quantum Hall effect regime: heat waves or coherent dipoles

• Published in: Physical review letters Vol. 108; no. 22; p. 226801
• Main Authors: Gross, Yaron, Dolev, Merav, Heiblum, Moty, Umansky, Vladimir, Mahalu, Diana
• Format: Journal Article
• Language: English
• Published: United States 30.05.2012

Counterpropagating (upstream) chiral neutral edge modes, which were predicted to be present in hole-conjugate states, were observed recently in a variety of fractional quantum Hall states (ν=2/3, ν=3/5, ν=8/3, and ν=5/2), by measuring the charge noise that resulted after partitioning the neutral mod...