Bosonization of dimerized Hubbard chains

Details Bosonization of dimerized Hubbard chains Bosonization of dimerized Hubbard chains

2004-11-11

arxiv.org/abs/cond-mat/0411315v1

physica status solidi (b) 242, 245 (2005)

Physics

Condensed Matter

Strongly Correlated Electrons

7 pages; Proceedings ICTP 2004, Ustron, Poland

Scientific paper

10.1002/pssb.200460041

The role of Klein factors is investigated for the bosonized Hamiltonian of the dimerized Hubbard model. Contrary to previous approaches we take into account their number changing property, i.e. we do not replace them by Majorana fermions. We show how to treat Klein factors in the framework of the self-consistent harmonic approximation, both for finite systems and in the thermodynamic limit.

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