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Correlation energy, quantum phase transition, and bias potential effects in quantum Hall bilayers at ν=1

URN to cite this document:
urn:nbn:de:bvb:355-epub-282417
Schliemann, John
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Date of publication of this fulltext: 22 May 2013 13:49


Abstract

We study the correlation energy, the effective anisotropy parameter, and quantum fluctuations of the pseudospin magnetization in bilayer quantum Hall systems at total filling factor ν=1 by means of exact diagonalizations of the Hamiltonian in the spherical geometry. We compare exact-diagonalization results for the ground-state energy with finite-size Hartree-Fock values. In the ordered ...

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