English

The last word in strong correlations

Strongly Correlated Electrons 2011-09-23 v1

Abstract

In the Fractional Quantum Hall Effect (FQHE), in the noninteracting limit, only a fraction ν\nu of the Lowest Landau Level (LLL) is occupied, producing a huge degeneracy. Interactions lift this degeneracy and mix in higher LL's. In the limit in which we ignore all but the LLL (i.e., let the inverse electron mass 1m{1 \over m}\to \infty), the kinetic energy is an irrelevant constant and the ratio of potential to kinetic energy is essentially infinite, making this the most strongly correlated problem imaginable. I give a telegraphic review of the Hamiltonian Theory of the FQHE developed with Ganpathy Murthy that deals with this problem with some success. A nodding acquaintance with FQHE physics is presumed.

Keywords

Cite

@article{arxiv.1109.4902,
  title  = {The last word in strong correlations},
  author = {R. Shankar},
  journal= {arXiv preprint arXiv:1109.4902},
  year   = {2011}
}

Comments

Dedicated to Dieter Vollhardt on his 60th birthday

R2 v1 2026-06-21T19:08:59.870Z