Results 1 to 10 of about 1,518,477 (199)
Anderson localization in sigma models [PDF]
EPJ Web of Conferences, 2018 In QCD above the chiral restoration temperature there exists an Anderson transition in the fermion spectrum from localized to delocalized modes. We investigate whether the same holds for nonlinear sigma models which share properties like dynamical mass ...
Bruckmann Falk, Wellnhofer Jacob
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Pseudoduality in Sigma Models [PDF]
Nuclear Physics B, 2002 We revisit classical "on shell" duality, i.e., pseudoduality, in two dimensional conformally invariant classical sigma models and find some new interesting results.
Alvarez +27 more
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Gauged sigma models and magnetic Skyrmions
SciPost Physics, 2019 We define a gauged non-linear sigma model for a 2-sphere valued field and a $SU(2)$ connection on an arbitrary Riemann surface whose energy functional reduces to that for critically coupled magnetic skyrmions in the plane, with arbitrary ...
Bernd J Schroers
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Aspects of Nonrelativistic Strings
Frontiers in Physics, 2022 We review recent developments on nonrelativistic string theory. In flat spacetime, the theory is defined by a two-dimensional relativistic quantum field theory with nonrelativistic global symmetries acting on the worldsheet fields.
Gerben Oling, Gerben Oling, Ziqi Yan
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Duality, Generalized Global Symmetries and Jet Space Isometries
Universe, 2021 We revisit universal features of duality in linear and nonlinear relativistic scalar and Abelian 1-form theories with single or multiple fields, which exhibit ordinary or generalized global symmetries.
Athanasios Chatzistavrakidis +2 more
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Journal of High Energy Physics, 2021 We introduce a two-dimensional sigma model associated with a Jacobi manifold. The model is a generalisation of a Poisson sigma model providing a topological open string theory.
Francesco Bascone +2 more
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Cosmology of linear Higgs-sigma models with conformal invariance
Journal of High Energy Physics, 2021 We consider general linear Higgs-sigma models as ultra-violet completions of the Higgs inflation. We introduce general higher curvature terms beyond Einstein gravity and recast them into a class of linear Higgs-sigma models in the scalar-dual formulation
Hyun Min Lee, Adriana G. Menkara
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New integrable coset sigma models
Journal of High Energy Physics, 2021 By using the general framework of affine Gaudin models, we construct a new class of integrable sigma models. They are defined on a coset of the direct product of N copies of a Lie group over some diagonal subgroup and they depend on 3N − 2 free ...
Gleb Arutyunov +2 more
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String Sigma Models on Curved Supermanifolds
Universe, 2018 We use the techniques of integral forms to analyze the easiest example of two-dimensional sigma models on a supermanifold. We write the action as an integral of a top integral form over a D = 2 supermanifold, and we show how to interpolate between ...
Roberto Catenacci +1 more
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Renormalization of supersymmetric Lifshitz sigma models
Journal of High Energy Physics, 2023 We study the renormalization of an N $$ \mathcal{N} $$ = 1 supersymmetric Lifshitz sigma model in three dimensions. The sigma model exhibits worldvolume anisotropy in space and time around the high-energy z = 2 Lifshitz point, such that the worldvolume ...
Ziqi Yan
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