Ja. Katine et al., DETERMINATION OF THE ELECTRONIC PHASE COHERENCE TIME IN ONE-DIMENSIONAL CHANNELS, Physical review. B, Condensed matter, 57(3), 1998, pp. 1698-1702
We utilize the weak-localization effect in an array of one-dimensional
channels to perform a quantitative measurement of the electronic phas
e coherence time at temperatures between 100 mK and 4.2 K in the two-d
imensional electron gas formed in a GaAs/AlxGa1-xAs heterostructure. T
he measured times agree well with theories of dephasing based on elect
ron-electron scattering.