Duncan Haldane developed some namesake pseudopotentials that can be used to model this effect.
Duncan Haldane developed some namesake pseudopotentials that can be used to model this effect. This effect was partially explained by a predictive wavefunction developed by Robert Laughlin, and topological insulators can exhibit its "spin" type. The two major varieties of this effect are determined by whether the (*) filling factor has a fractional or integer value. This effect describes how, in two-dimensional electron systems, conductivity takes on discrete values equal to multiples of e squared over Planck's constant. For 10 points, identify this effect discovered by Klaus von Klitzing, analogous to a classical effect in which a current transverse to a magnetic field creates a voltage difference.
Duncan Haldane developed some namesake pseudopotentials that can be used to model this effect.
the quantum Hall effect (accept integer quantum Hall effect or fractional quantum Hall effect or quantum spin Hall effect; prompt on "Hall effect")