Dephasing of an electronic two-path interferometer

Interference of multiple electron trajectories is generally used to better understand coherent electron phenomena and their dephasing processes. Yet, the implementation of a high visibility electronic interferometer faces challenges, such as restrictingthenumberoftrajectoriesandachievingsufficiently long coherence and thermal lengths. Therefore, chiral edge channels in the quantum Hall effect (QHE) regime [1], being one-dimensional-like channels running along the edge of a two-dimensional electron gas (2DEG), are ideal as distinct trajectories in electron interferometers [2‐4 ]. Based on these edge channels, the electronic Mach-Zehnder interferometer (MZI) is a true two-path interferometer with the enclosed magneticfluxbetweenthetwopathscontrollingtheAharonov