Monday, March 18, 2013

1303.3684 (Giuseppe Benfatto et al.)

Universality of one-dimensional Fermi systems, II. The Luttinger liquid

Giuseppe Benfatto, Pierluigi Falco, Vieri Mastropietro
We complete the proof started in "Universality of one-dimensional Fermi systems, I." of the universal Luttinger liquid relations for a general model of spinning fermions on a lattice, by making use of the Ward Identities due to asymptotically emerging symmetries. This is done by introducing an effective model verifying extra symmetries and by relating its critical exponents to those of the fermion lattice gas by suitable fine tuning of the parameters.
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