Exact real-time longitudinal correlation functions of the massive XXZ chain - Archive ouverte HAL
Article Dans Une Revue Physical Review Letters Année : 2021

Exact real-time longitudinal correlation functions of the massive XXZ chain

Constantin Babenko
  • Fonction : Auteur
Frank Göhmann
  • Fonction : Auteur
Jesko Sirker
  • Fonction : Auteur
Junji Suzuki
  • Fonction : Auteur

Résumé

We apply a recently developed thermal form factor expansion method to evaluate the real-time longitudinal spin-spin correlation functions of the spin-12 XXZ chain in the antiferromagnetically ordered regime at zero temperature. An analytical result incorporating all types of excitations in the model is obtained, without any approximations. This allows for the accurate calculation of the real-time correlations in this strongly interacting quantum system for arbitrary distances and times.

Dates et versions

hal-03107909 , version 1 (12-01-2021)

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Citer

Constantin Babenko, Frank Göhmann, Karol K. Kozlowski, Jesko Sirker, Junji Suzuki. Exact real-time longitudinal correlation functions of the massive XXZ chain. Physical Review Letters, 2021, 126 (21), pp.210602. ⟨10.1103/PhysRevLett.126.210602⟩. ⟨hal-03107909⟩
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