Form factors and generalized hydrodynamics for integrable systems. (8th November 2021)

• Record Type: Journal Article
• Authors: Cubero, Axel Cortés; Yoshimura, Takato; Spohn, Herbert
• Is Part Of: Journal of statistical mechanics. (2021:Nov.)
• Publication Date: 2021-11-08
• Subjects: form factors -- quantum transport in one-dimension -- thermodynamic Bethe ansatz -- transport properties; Statistical mechanics -- Periodicals; Mechanics -- Statistical methods -- Periodicals; 530.1305
• DOI: 10.1088/1742-5468/ac2eda
• Languages: English
• ISSNs: 1742-5468

Abstract

Abstract: Our review covers microscopic foundations of generalized hydrodynamics (GHD). As one generic approach we develop form factor expansions, for ground states and generalized Gibbs ensembles (GGE). In the latter case the so obtained results are compared with predictions from GHD. One cornerstone of GHD are the GGE averaged microscopic currents, which can also be obtained through employing form factors. Discussed is a second, completely orthogonal approach based on the availability of a self-conserved current.