A new class of exactly solvable interacting fermion models in one dimension

Schulz, HJ and Shastry, BS (1997) A new class of exactly solvable interacting fermion models in one dimension. [Preprint]

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Abstract

We investigate a model containing two species of one-dimensional fermions interacting via a gauge field determined by the positions of all particles of the opposite species. The model can be solved exactly via a simple unitary transformation. Nevertheless, correlation functions exhibit nontrivial interaction-dependent exponents. A similar model defined on a lattice is introduced and solved. Various generalizations, e.g. to the case of internal symmetries of the fermions, are discussed. The present treatment also clarifies certain aspects of Luttinger's original solution of the ``Luttinger model''.

Item Type:	Preprint
Additional Information:	Phys.Rev.Lett. 80 (1998) 1924
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	26 Jul 2004
Last Modified:	19 Sep 2010 04:13
URI:	http://eprints.iisc.ac.in/id/eprint/873

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