Exact Symmetries of Electron Interactions in the Lowest Landau Level
M. Eliashvili, Z. F. Ezawa, G. Tsitsishvili
Abstract
Considering the system of interacting electrons in the lowest Landau level we show that the corresponding four-fermion Hamiltonian is invariant with respect to the local area-preserving transformations. Testing a certain class of interaction potentials, we find that this symmetry is universal with respect to a concrete type of potentials.
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