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Shaping charge excitations in chiral edge states with a time-dependent gate voltage

Shaping charge excitations in chiral edge states with a time-dependent gate voltage

We study a coherent conductor supporting a single edge channel in which alternating current pulses are created by local time-dependent gating and sent on a beam-splitter realized by a quantum point contact. The current response to the gate voltage in this setup is intrinsically linear. Based on a fully self-consistent …