Details

Autor(en) / Beteiligte

• Grenier, Ch
• Dubois, J.
• Jullien, T.
• Roulleau, P.
• Glattli, D. C.
• Degiovanni, P.

Titel

Fractionalization of minimal excitations in integer quantum Hall edge channels

Ist Teil von

• Physical review. B, Condensed matter and materials physics, 2013-08, Vol.88 (8), Article 085302

Ort / Verlag

American Physical Society

Erscheinungsjahr

2013

Link zum Volltext

Quelle

American Physical Society [PROLA]

Beschreibungen/Notizen

• A theoretical study of the single-electron coherence properties of Lorentzian and rectangular pulses is presented. By combining bosonization and the Floquet scattering approach, the effect of interactions on a periodic source of voltage pulses is computed exactly. When such excitations are injected into one of the channels of a system of two copropagating quantum Hall edge channels, they fractionalize into pulses whose charge and shape reflect the properties of interactions. We show that the dependence of fractionalization-induced electron/hole pair production in the pulses' amplitude contains clear signatures of the fractionalization of the individual excitations. We propose an experimental setup combining a source of Lorentzian pulses and a Hanbury Brown-Twiss interferometer to measure interaction-induced electron/hole pair production and more generally to reconstruct single-electron coherence of these excitations before and after their fractionalization.