Critical properties of 1D spin-gapped fermions at the onset of magnetization

Vekua, T.; Matveenko, S. I.; Shlyapnikov, G. V.

Critical properties of 1D spin-gapped fermions at the onset of magnetization

Authors

Vekua, T.

Matveenko, S. I.

Shlyapnikov, G. V.

Description

We develop an effective field theory for finding critical properties of 1D spin gapped fermions at the onset of magnetization. It is shown how the spin-charge interaction leads to a linear critical behavior and finite susceptibility for a wide range of models. We also discuss possible manifestations of spin-charge coupling in cold atomic gases.
4 revtex pages