Resumo
We propose a conceptually new framework to study the onset of Anderson localization in disordered
systems. The idea is to expose waves propagating in a random scattering environment to
a sequence of short dephasing pulses. The system responds through coherence peaks forming at
specic echo times, each echo representing a particular process of quantum interference. We suggest
a concrete realization for cold gases, where quantum interferences are observed in the momentum
distribution of matter waves in a laser speckle potential. This denes a challenging, but arguably
realistic framework promising to yield unprecedented insight into the mechanisms of Anderson localization.