|
Résumé |
Edge channels in coherent Quantum Hall systems are celebrated as they carry of
unique quantum excitations that are being actively explored in analogy to
quantum optics.
We discuss a complementary "high-energy" regime of electron quantum optics with
quasi-particles injected on demand and propagating ballistically along depleted
edge channels.
Short pulse lengths (<10 ps) enable Coulomb-repulsion dominated collisions
which can be seen as classical analogue of Hong-Ou-Mandel coincidence
correlations. I will present analysis of recent experiments performed at
National metrology insittute of Germany (PTB) and the UK (NPL) in the "hgih-
energy" regime. Finally, I will discss prospects for studying strongly
correlatated few-electron objects such as Coulomb liquids droplets driven by
moving quantum dots and Laughlin solitons in depleted edge channels. |
