Kondo lattice model: Unitary transformations, spin dynamics, strongly correlated charged modes, and vacuum instability

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Prats, J. M.; Lopez-Aguilar, F.;
(1996)

Using unitary transformations, we express the Kondo lattice Hamiltonian in terms of fermionic operators that annihilate the ground state of the interacting system and that represent the best possible approximations to the actual charged excitations. In this way, we obta... View more
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