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Journal Articles Physical Review Letters Year : 2005

## Computation of dynamical correlation functions of Heisenberg chains in a field

J. -S. Caux
• Function : Author
Jean Michel Maillet

#### 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.

### Dates and versions

ensl-00266558 , version 1 (24-03-2008)

### Identifiers

• HAL Id : ensl-00266558 , version 1
• ARXIV :
• DOI :

### Cite

J. -S. Caux, Jean Michel Maillet. Computation of dynamical correlation functions of Heisenberg chains in a field. Physical Review Letters, 2005, 95 (077201), pp.077201. ⟨10.1103/PhysRevLett.95.077201⟩. ⟨ensl-00266558⟩

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