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Geometrical Description of the Fractional Quantum Hall Effect

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The fundamental collective degree of freedom of fractional quantum Hall states is identified as a unimodular two-dimensional spatial metric that characterizes the local shape of the correlations of the incompressible fluid. Its quantum fluctuations are controlled by a topologically-quantized “guiding-center spin”. Charge fluctuations are proportional to its Gaussian curvature.

This talk is part of the Theory of Condensed Matter series.

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