Figure 2 (IMAGE) Osaka University Caption (a) Conductance of the quantum dot as a function of the gate voltage. The conductance is normalized by the conductance quantum (2e2/h). The experimental data (solid lines) and the results of the numerical renormalization group (NRG) calculations (dashed lines) are quantitatively consistent with each other. (b) Filled circles show the effective charge e*/e as a function of Wilson ratio which quantifies the strength of fluctuations. The effective charge e*/e is derived by the current noise and the Wilson ratio represents quantum fluctuations. Three square symbols represent the theoretical prediction for SU(4), SU(2), and non-interacting particles. Dashed line is the extended theoretical prediction, which nicely connects the symmetry crossover of the quantum liquid ground states. Credit Osaka University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.