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abstract:In condensed matter physics, the Laughlin wavefunctionOriginal article: Anomalous Quantum Hall Effect: An Incompressible Quantum Fluid with Fractionally Charged Excitations pp. 210-213 is an ansatz, proposed by Robert Laughlin for the ground state of a two-dimensional electron gas placed in a uniform background magnetic field in the presence of a uniform jellium background when the filling factor (Quantum Hall effect) of the lowest Landau level is \nu=1/n where n is an odd positive integer.