Is the Luttinger liquid a new state of matter?
  We are demonstrating that the Luttinger model with short range interaction can be treated as a type of Fermi liquid. In line with the main dogma of Landau's theory one can define a fermion excitation renormalized by interaction and show that in terms of these fermions any excited state of the system is described by free particles. The fermions are a mixture of renormalized right and left electrons. The electric charge and chirality of the Landau quasi-particle is discussed. 
V. V. Afonin (A. F. Ioffe Institute of the Russian Academy of   Sciences, Saint Petersburg, Russia), V. Yu. Petrov (Theory D...