The last word in strong correlations

Details The last word in strong correlations The last word in strong correlations

2011-09-22

arxiv.org/abs/1109.4902v1

Ann. Phys. 523 , No: 8-9, 751-758, (2011)

Physics

Condensed Matter

Strongly Correlated Electrons

Dedicated to Dieter Vollhardt on his 60th birthday

Scientific paper

10.1002/andp.201100017

In the Fractional Quantum Hall Effect (FQHE), in the noninteracting limit, only a fraction $\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 ${1 \over m}\to \infty$), 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.

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