TBA equations for excited states in theO(3) andO(4) nonlinear -model

2003/09/30 by János Balog, J. Balog, A. Hegedus +1 · 1 citation
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Nonlinear Waves and Solitons #Quantum, superfluid, helium dynamics #hep-lat #hep-th

paper · pdf · doi:10.1088/0305-4470/37/5/027

published as J.Phys.A37:1881-1901,2004 · 28 pages, 2 eps figures, LaTeX, typo corrected

openalex publication_date 2004/01/19 · arxiv created 2004/09/23 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04

Abstract

TBA integral equations are proposed for one-particle states in the sausage and SS models and their σ-model limits. Combined with the ground-state TBA equations the exact mass gap is computed in the O (3) and O (4) nonlinear σ-model and the results are compared to 3-loop perturbation theory and Monte Carlo data.

Citations

• Dynkin TBA's

Cited by

• Konishi operator at intermediate coupling