Low energy effective Hamiltonian for the XXZ spin chain

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Coupling constants for the most relevant terms in the low energy effective Hamiltonian of the XXZ spin chain are derived. Using this result we study the low energy (low temperature, weak magnetic field) thermodynamics, finite size effects and subleading long distance asymptotics of correlation functions.

Original languageEnglish (US)
Pages (from-to)533-549
Number of pages17
JournalNuclear Physics B
Issue number3
StatePublished - Jul 6 1998

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


  • Gaussian model
  • Low-energy effective Hamiltonian
  • Renormalization group
  • XXZ spin chain


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