Abstract

A train of voltage pulses can be used for time-domain spectroscopy of quantum-coherent structures, as shown by Christian Flindt and co-workers in article number 1900014. When single-electron excitations are periodically injected into a mesoscopic circuit, the distribution of waiting times between the outgoing charges contains detailed information about the characteristic timescales of the device. The development of single-particle emitters and detectors suggests that the proposal may soon be within reach.

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