 The angular momentum for this state is formula_16.The Laughlin wavefunction is the multiparticle wavefunction for quasiparticles.The expectation value of the interaction energy for a pair of quasiparticles is 

where the screened potential is (see Coulomb potential between two current loops embedded in a magnetic field)

where formula_19 is a confluent hypergeometric function and formula_20 is a Bessel function of the first kind.