Results 31 to 40 of about 1,518,477 (199)
Integrable crosscaps in classical sigma models
Journal of High Energy Physics, 2023 We study the integrable boundaries and crosscaps of classical sigma models. We show that there exists a classical analog of the integrability condition and KT-relation of the boundary and crosscap states of quantum spin chains.
Tamas Gombor
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Grassmannian Sigma - Models [PDF]
, 2012 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Supersymmetric Sigma Model Geometry [PDF]
Symmetry, 2012 This is a review of how sigma models formulated in Superspace have become important tools for understanding geometry. Topics included are: The (hyper)kähler reduction; projective superspace; the generalized Legendre construction; generalized Kähler geometry and constructions of hyperkähler metrics on Hermitian symmetric spaces.
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Theta-terms in nonlinear sigma-models [PDF]
, 1999 We trace the origin of theta-terms in non-linear sigma-models as a nonperturbative anomaly of current algebras. The non-linear sigma-models emerge as a low energy limit of fermionic sigma-models.
A.G. Abanov +27 more
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Integrability, duality and sigma models
Journal of High Energy Physics, 2018 We introduce and study conformal field theories specified by W −algebras commuting with certain set of screening charges. These CFT’s possess perturbations which define integrable QFT’s. We establish that these QFT’s have local and non-local Integrals of
V. A. Fateev, A. V. Litvinov
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Sigma models as Gross–Neveu models [PDF]
Theoretical and Mathematical Physics, 2021 17 pages, 1 ...
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Sigma models with negative curvature
Physics Letters B, 2016 We construct Higgs Effective Field Theory (HEFT) based on the scalar manifold Hn, which is a hyperbolic space of constant negative curvature. The Lagrangian has a non-compact O(n,1) global symmetry group, but it gives a unitary theory as long as only a ...
Rodrigo Alonso +2 more
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Topological sigma models on supermanifolds
Nuclear Physics B, 2017 This paper concerns constructing topological sigma models governing maps from semirigid super Riemann surfaces to general target supermanifolds. We define both the A model and B model in this general setup by defining suitable BRST operators and physical
Bei Jia
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Three dimensional conformal sigma models [PDF]
, 2007 We construct novel conformal sigma models in three dimensions. Nonlinear sigma models in three dimensions are nonrenormalizable in perturbation theory. We use Wilsonian renormalization group equation method to find the fixed points.
Higashi, Takeshi +2 more
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Relativistic Mean-Field Models and Nuclear Matter Constraints
, 2013 This work presents a preliminary study of 147 relativistic mean-field (RMF) hadronic models used in the literature, regarding their behavior in the nuclear matter regime.
Avancini, S. S. +8 more
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