Results 51 to 60 of about 25,385,750 (231)
Ward Identity and Scattering Amplitudes for Nonlinear Sigma Models. [PDF]
Physical Review Letters, 2017 We present a Ward identity for nonlinear sigma models using generalized nonlinear shift symmetries, without introducing current algebra or coset space.
I. Low, Zhewei Yin
semanticscholar +1 more source
Noncommutative linear sigma models [PDF]
Nuclear Physics B, 2001 We examine noncommutative linear sigma models with U(N) global symmetry groups at the one-loop quantum level, and contrast the results with our previous study of the noncommutative O(N) linear sigma models where we have shown that Nambu-Goldstone symmetry realization is inconsistent with continuum renormalization.
Campbell, Bruce A., Kaminsky, Kirk
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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
doaj +1 more source
Self-dual supersymmetric nonlinear sigma models [PDF]
, 2013 In four-dimensional N=1 Minkowski superspace, general nonlinear sigma models with four-dimensional target spaces may be realised in term of CCL (chiral and complex linear) dynamical variables which consist of a chiral scalar, a complex linear scalar and ...
Kuzenko, S. M., McArthur, I. N.
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Integrable sigma models and perturbed coset models [PDF]
, 2001 Sigma models arise frequently in particle physics and condensed-matter physics as low-energy effective theories. In this paper I compute the exact free energy at any temperature in two hierarchies of integrable sigma models in two dimensions.
Fendley, Paul
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Junctions of mass-deformed nonlinear sigma models on SO(2N)/U(N) and Sp(N)/U(N). Part II
Journal of High Energy Physics, 2020 We construct three-pronged junctions of mass-deformed nonlinear sigma models on SO(2N)/U(N) and Sp(N )/U(N ) for generic N. We study the nonlinear sigma models on the Grassmann manifold or on the complex projective space.
Taegyu Kim, Sunyoung Shin
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Integrable coupled sigma-models [PDF]
, 2018 5 pages, examples ...
Delduc, Francois +3 more
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A Novel Symmetry in Sigma Models [PDF]
, 1996 A class of non-linear sigma models possessing a new symmetry is identified. The same symmetry is also present in Chern-Simons theories. This hints at a possible topological origin for this class of sigma models.
Ahn +32 more
core +2 more sources
On integrable deformations of superstring sigma models related to AdSn×Sn supercosets [PDF]
, 2015 We consider two integrable deformations of 2d sigma models on supercosets associated with AdS n × S n . The first, the “η-deformation” (based on the Yang–Baxter sigma model), is a one-parameter generalization of the standard superstring action on AdS n ×
B. Hoare, A. Tseytlin
semanticscholar +1 more source
Nonlinear Grassmann Sigma Models in Any Dimension and An Infinite Number of Conserved Currents [PDF]
, 1998 We first consider nonlinear Grassmann sigma models in any dimension and next construct their submodels. For these models we construct an infinite number of nontrivial conserved currents.
Ferretti +9 more
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