Aspects of Duality in Nodal Liquids
Strongly Correlated Electrons
2008-11-26 v1 High Energy Physics - Lattice
High Energy Physics - Theory
Abstract
Starting from a microscopic t-J like model and a SU(2) spin-charge separation ansatz, a relativistic continuum gauge lagrangian is obtained in the vicinity of a nodal point of the Fermi surface. The excitations in the pseudogap phase are described by topological excitations in the dual model which has a Z_2 global symmetry due to the effect of instantons. Confinement of spinon and holons emerge from this picture. The adjoint and fundamental strings are associated with stripes. As the spin gap decreases a local Z_2 symmetry emerges.
Keywords
Cite
@article{arxiv.cond-mat/0210248,
title = {Aspects of Duality in Nodal Liquids},
author = {Nick E. Mavromatos and Sarben Sarkar},
journal= {arXiv preprint arXiv:cond-mat/0210248},
year = {2008}
}
Comments
15 pages revtex, no figures