The spin-1/2 anisotropic Heisenberg-chain in longitudinal and transversal magnetic fields: a DMRG study

Preprint

11 July 2002

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0207279

Abstract

Using the density matrix renormalization group technique, we evaluate the low-energy spectrum (ground state and first excited states) of the anisotropic antiferromagnetic spin-one-half chain under magnetic fields. We study both homogeneous longitudinal and transversal fields as well as the influence of a transversal staggered field on opening of a spin-gap. We find that only a staggered transversal field opens a substantial gap.

Keywords

STAGGERED TRANSVERSAL FIELD
ANISOTROPIC HEISENBERG
STAGGERED TRANSVERSAL
TRANSVERSAL MAGNETIC
ANTIFERROMAGNETIC
HEISENBERG CHAIN
FIELD ON OPENING
MAGNETIC FIELDS
LONGITUDINAL

All Related Versions

Version 1, 2002-07-11, ArXiv
Published version: Zeitschrift für Physik B Condensed Matter, 29 (1), 35.

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