Melting of Interference in the Fractional Quantum Hall Effect: Appearance of Neutral Modes

• Published in: Physical review letters Vol. 122; no. 24; p. 246801
• Main Authors: Bhattacharyya, Rajarshi, Banerjee, Mitali, Heiblum, Moty, Mahalu, Diana, Umansky, Vladimir
• Format: Journal Article
• Language: English
• Published: United States 21.06.2019

We attempted to measure interference of the outer edge mode in the fractional quantum hall regime with an electronic Mach-zehnder interferometer. The visibility of the interferometer wore off as we approached ν_{B}=1 and the transmission of the quantum point contacts (QPCs) of the interferometer sim...