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arXiv · 0709.4120

Superfrustration of charge degrees of freedom

Liza Huijse·Kareljan Schoutens
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Abstract

We review recent results, obtained with P. Fendley, on frustration of quantum charges in lattice models for itinerant fermions with strong repulsive interactions. A judicious tuning of kinetic and interaction terms leads to models possessing supersymmetry. In such models frustration takes the form of what we call superfrustration: an extensive degeneracy of supersymmetric ground states. We present a gallery of examples of superfrustration on a variety of 2D lattices.

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Liza Huijse, Kareljan Schoutens. 2007-09-26. Superfrustration of charge degrees of freedom. https://doi.org/10.1140/epjb/e2008-00150-9

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