Results 21 to 30 of about 25,385,750 (231)
Journal of High Energy PhysicsWith the use of mathematical techniques of tropical geometry, it was shown by Mikhalkin some twenty years ago that certain Gromov-Witten invariants associated with topological quantum field theories of pseudoholomorphic maps can be computed by going to ...
Emil Albrychiewicz +3 more
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Dual pairs of gauged linear sigma models and derived equivalences of Calabi–Yau threefolds [PDF]
, 2015 In this work we study the phase structure of skew symplectic sigma models, which are a certain class of two-dimensional N = ( 2 , 2 ) non-Abelian gauged linear sigma models.
Andreas Gerhardus, H. Jockers
semanticscholar +3 more sources
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. We show that any two sigma models that are "on shell" duals have opposite 1-loop renormalization group beta functions because of the integrability conditions for the pseudoduality ...
Alvarez +27 more
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SUPERMAGNETS AND SIGMA MODELS [PDF]
Gribov Memorial Volume, 2006 22 ...
Polyakov, A. M.
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Integrability in sigma-models [PDF]
Integrability: From Statistical Systems to Gauge Theory, 2017 The following topics are covered in this chapter: (1) Homogeneous spaces, (2) Classical integrability of sigma-models in two dimensions, (3) Topological terms, (4) Background-field method and beta-function, (5) S-matrix bootstrap in the O(N) model, (6 ...
K. Zarembo
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Topological sigma models & dissipative hydrodynamics [PDF]
Journal of High Energy Physics, 2015 A bstractWe outline a universal Schwinger-Keldysh effective theory which describes macroscopic thermal fluctuations of a relativistic field theory. The basic ingredients of our construction are three: a doubling of degrees of freedom, an emergent abelian
Felix M. Haehl +2 more
semanticscholar +8 more sources
Dirac sigma models from gauging [PDF]
, 2013 A bstractThe G/G WZW model results from the WZW-model by a standard procedure of gauging. G/G WZW models are members of Dirac sigma models, which also contain twisted Poisson sigma models as other examples.
V. Salnikov, T. Strobl
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Higher derivative sigma models
Journal of High Energy PhysicsWe explore the nature of running couplings in the higher derivative linear and nonlinear sigma models and show that the results in dimensional regularization for the physical running couplings do not always match the values quoted in the literature. Heat
John F. Donoghue, Gabriel Menezes
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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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Yang–Baxter sigma models based on the CYBE [PDF]
Nuclear Physics B, 2015 It is known that Yang–Baxter sigma models provide a systematic way to study integrable deformations of both principal chiral models and symmetric coset sigma models.
Takuya Matsumoto, Kentaroh Yoshida
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