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Fractionally charged quasiparticles in edge states, are expected to condenseto a chiral Luttinger liquid (CLL). We studied their condensation by measuringthe conductance and shot noise due to an artificial backscatterer embedded intheir path. At sufficiently low temperatures backscattering events were foundto be strongly correlated, producing a highly non-linear current-voltagecharacteristic and a non-classical shot noise - both are expected in a CLL.When, however, the impinging beam of quasiparticles was made dilute, eitherartificially via an additional weak backscatterer or by increasing thetemperature, the resultant outgoing noise was classical, indicating thescattering of independent quasiparticles. Here, we study in some detail thissurprising crossover from correlated particle behavior to an independentbehavior, as function of beam dilution.Comment: to be published on Phys. Rev. B (Rapid Communications

Anomalous chiral Luttinger liquid behavior of diluted fractionally charged quasiparticles