Effective Quantum Field Theory for the Thermodynamical Bethe Ansatz

Autor: Ivan K. Kostov
Přispěvatelé: Institut de Physique Théorique - UMR CNRS 3681 (IPHT), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2020
Předmět:
High Energy Physics - Theory
Nuclear and High Energy Physics
FOS: Physical sciences
bound state: pole
field theory
01 natural sciences
Bethe ansatz
Matrix (mathematics)
Critical point (thermodynamics)
0103 physical sciences
Bound state
lcsh:Nuclear and particle physics. Atomic energy. Radioactivity
Integrable Field Theories
Quantum field theory
010306 general physics
Neutral particle
dimension: 2
Condensed Matter - Statistical Mechanics
Mathematical physics
Physics
field theory: conformal
Statistical Mechanics (cond-mat.stat-mech)
AdS/CFT correspondence
010308 nuclear & particles physics
Scattering
[PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th]
scattering
Bethe Ansatz
critical phenomena
[PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph]
Automatic Keywords
neutral particle
High Energy Physics - Theory (hep-th)
Topological Field Theories
Bethe ansatz: thermodynamical
Path integral formulation
lcsh:QC770-798
82B23
S-matrix
simplex
path integral
Zdroj: JHEP
JHEP, 2020, 02, pp.043. ⟨10.1007/JHEP02(2020)043⟩
Journal of High Energy Physics, Vol 2020, Iss 2, Pp 1-25 (2020)
Journal of High Energy Physics
Journal of High Energy Physics, 2020, 02, pp.043. ⟨10.1007/JHEP02(2020)043⟩
ISSN: 1126-6708
1029-8479
DOI: 10.1007/JHEP02(2020)043⟩
Popis: We construct an effective Quantum Field Theory for the wrapping effects in 1+1 dimensional models of factorised scattering. The recently developed graph-theoretical approach to TBA gives the perturbative desctiption of this QFT. For the sake of simplicity we limit ourselves to scattering matrices for a single neutral particle and no bound state poles, such as the sinh-Gordon one. On the other hand, in view of applications to AdS/CFT, we do not assume that the scattering matrix is of difference type. The effective QFT involves both bosonic and fermionic fields and possesses a symmetry which makes it one-loop exact. The corresponding path integral localises to a critical point determined by the TBA equation.
Comment: 22 pages, 4 figures, typos corrected
Databáze: OpenAIRE
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