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The mathematical equivalence of the time-independent Schrodinger equation andthe Helmholtz equation is exploited to provide a novel means of studyinguniversal conductance fluctuations in ballistic chaotic mesoscopic systemsusing a two-dimensional microwave-cavity. The classically chaotic raytrajectories within a suitably-shaped microwave cavity play a role analogous tothat of the chaotic dynamics of non-interacting electron transport through aballistic quantum dot in the absence of thermal fluctuations. The microwavecavity is coupled through two single-mode ports and the effect of non-idealcoupling between the ports and cavity is removed by a previously developedmethod based on the measured radiation impedance matrix. The Landauer-Buttikerformalism is applied to obtain the conductance of a corresponding mesoscopicquantum-dot device. We find good agreement for the probability densityfunctions (PDFs) of the experimentally derived surrogate conductance, as wellas its mean and variance, with the theoretical predictions of Brouwer andBeenakker. We also observe a linear relation between the quantum dephasingparameter and the cavity ohmic loss parameter.Comment: 7 Pages,5 Figures (all figures in Color). Submitted to Phys. Rev. B.  Updated with Referee/Editor comment

Experimental test of universal conductance fluctuations by means of wave-chaotic microwave cavities