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The European Physical Journal B

Staggered flux state and charge order in a 2-leg triangular ladder system

Lihua Pan, J. An, Can Gong

Published Sep 1, 2008• 0 citations

DOI: 10.1140/epjb/e2008-00351-2

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The system of interacting spinless fermions hopping on a two-leg ladder in the presence of an external magnetic field is shown to possess a long-range order: the bond density wave or the staggered flux phase. In both cases the elementary excitations are

{Z}_{2}

kinks and carry one half the charge of an electron.