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cond-mat.str-el2001★ 11 cited
Generalised Shastry-Sutherland Models in three and higher dimensions
Naveen Surendran, R. Shankar
We construct Heisenberg anti-ferromagnetic models in arbitrary dimensions that have isotropic valence bond crystals (VBC) as their exact ground states. The d=2 model is the Shastry…
cond-mat2001★ 1 cited
The Hydrodynamical Limit of Quantum Hall system
D. Sreedhar Babu, R. Shankar, M. Sivakumar
We study the current algebra of FQHE systems in the hydrodynamical limit of small amplitude, long-wavelength fluctuations. We show that the algebra simplifies considerably in this…
cond-mat.mes-hall2001
Spiral orientational order in quantum Hall skyrmion lattices
Sumithra Sankararaman, R. Shankar
We investigate the existence of spiral ordering in the planar spin orientation of skyrmions localised on a face centered rectangular lattice (FCRL). We use the non-linear sigma mod…