Scatter Plot from Scientific Research

Behaviour of Δ_{FM} as a function of disorder strength W for N = 303 (empty red circles) and N = 610 (blue triangles) atoms. To illustrate the scale invariance of the system, the axes are rescaled by the zero-disorder ferromagnetic gap size J N. The markers represent the experimental data with statistical error bars, and the lines show the theoretical results obtained by exact diagonalization (see the ‘ Numeric simulation of the large-detuning regime ’ section). Data are obtained from a fit of the polariton’s position ± standard deviation, with different atom numbers. The fitted data are averaged over 290 measurements for N = 303 (empty red circles) and over 269 measurements for N = 610 (blue triangles).

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