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arXiv · hep-th/0012269

Non local Thirring model with spin flipping interactions

Aníbal Iucci·Kang Li·Carlos M. Naón
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Abstract

We extend a non local and non covariant version of the Thirring model in order to describe a many-body system with spin-flipping interactions By introducing a model with two fermion species we are able to avoid the use of non abelian bosonization which is needed in a previous approach. We obtain a bosonized expression for the partition function, describing the dynamics of the collective modes of this system. By using the self-consistent harmonic approximation we found a formula for the gap of the spin-charge excitations as functional of arbitrary electron-electron potentials.

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Aníbal Iucci, Kang Li, Carlos M. Naón. 2000-12-29. Non local Thirring model with spin flipping interactions. https://doi.org/10.1016/s0550-3213(01)00078-5

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