Coherent tunnelling across a quantum point contact in the quantum Hall regime
Coherent tunnelling across a quantum point contact in the quantum Hall regime
The unique properties of quantum Hall devices arise from the ideal one-dimensional edge states that form in a two-dimensional electron system at high magnetic field. Tunnelling between edge states across a quantum point contact (QPC) has already revealed rich physics, like fractionally charged excitations, or chiral Luttinger liquid. Thanks to …