Computation of dynamical correlation functions of Heisenberg chains in a field

J. -S. Caux; Jean Michel Maillet

doi:10.1103/PhysRevLett.95.077201

Journal articles

Computation of dynamical correlation functions of Heisenberg chains in a field

J. -S. Caux ¹ Jean Michel Maillet ²

1 IFTA - Institute for Theoretical Physics [Amsterdam]

2 Phys-ENS - Laboratoire de Physique de l'ENS Lyon

Abstract : We compute the momentum- and frequency-dependent longitudinal spin structure factor for the one-dimensional spin-1/2 $XXZ$ Heisenberg spin chain in a magnetic field, using exact determinant representations for form factors on the lattice. Multiparticle contributions are computed numerically throughout the Brillouin zone, yielding saturation of the sum rule to high precision.

Keywords : Quantum integrable models spin chain Correlation functions Bethe ansatz

Document type :

Journal articles

Domain :

Physics [physics] / Condensed Matter [cond-mat] / Statistical Mechanics [cond-mat.stat-mech]

Physics [physics] / High Energy Physics - Theory [hep-th]

Complete list of metadatas

https://hal-ens-lyon.archives-ouvertes.fr/ensl-00266558
Contributor : Jean Michel Maillet <>
Submitted on : Monday, March 24, 2008 - 10:17:44 PM
Last modification on : Saturday, August 29, 2020 - 8:30:03 PM

Computation of dynamical correlation functions of Heisenberg chains in a field

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Computation of dynamical correlation functions of Heisenberg chains in a field

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