Scattering resonances and two-particle bound states of the extended Hubbard model
classification
🪐 quant-ph
cond-mat.other
keywords
hubbardmodelstatesextendedon-siteresonancesscatteringtwo-particle
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We present a complete derivation of two-particle states of the one-dimensional extended Hubbard model involving attractive or repulsive on-site and nearest-neighbour interactions. We find that this system possesses scattering resonances and two families of energy-dependent interaction-bound states which are not present in the Hubbard model with the on-site interaction alone.
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