The problem of two-dimensional localization in the presence of a magnetic field is reconsidered. The existence of extended electronic states is demonstrated by use of the replica formalism and duality arguments. These states are analogs of θ=π vacua in four-dimensional Yang-Mills theories, and occur at the center of each Landau band. The present results complete the explanation of the integrally quantized Hall effect.
No takes yet. Share an insight, caveat, or question.
Levine et al. (1983) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: