Results 41 to 50 of about 23,658,748 (362)

CP(N) sigma model on a finite interval revisited [PDF]

open access: yes, 2016
In this paper we will revisit the large N solution of the CPN sigma model on a finite interval of length L. We will find a family of boundary conditions for which the large N saddle point can be found analytically.
A. Milekhin
semanticscholar   +1 more source

The Grassmannian Sigma Model in SU(2) Yang-Mills Theory [PDF]

open access: yes, 2007
Spin-charge separation in pure SU(2) Yang-Mills theory was recently found to involve the dynamics of an O(3) non-linear sigma model and, seemingly, a Grassmannian non-linear sigma model.
David Marsh   +2 more
core   +2 more sources

A framework to a mass-dimension-one fermionic sigma model [PDF]

open access: yes, 2016
In this paper a mass-dimension-one fermionic sigma model, realized by the eigenspinors of the charge conjugation operator with dual helicity (Elko spinors), is developed.
R. J. Bueno Rogerio   +3 more
semanticscholar   +1 more source

Cohomological reduction of sigma models [PDF]

open access: yesJournal of High Energy Physics, 2010
This article studies some features of quantum field theories with internal supersymmetry, focusing mainly on 2-dimensional non-linear sigma models which take values in a coset superspace. It is discussed how BRST operators from the target space supersymmetry algebra can be used to identify subsectors which are often simpler than the original model and ...
Candu, C.   +3 more
openaire   +4 more sources

A Mathematical Theory of the Gauged Linear Sigma Model [PDF]

open access: yes, 2015
We construct a mathematical theory of Witten's Gauged Linear Sigma Model (GLSM). Our theory applies to a wide range of examples, including many cases with non-Abelian gauge group.
Huijun Fan, Tyler Jarvis, Y. Ruan
semanticscholar   +1 more source

Pseudoduality in sigma models [PDF]

open access: yesNuclear 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 ...
openaire   +3 more sources

Application of biological variation and six sigma models to evaluate analytical quality of six HbA1c analyzers and design quality control strategy

open access: yesArtificial Cells, Nanomedicine, and Biotechnology, 2019
Objective To apply biological variation and six Sigma models to evaluate analysis performance of 6 HbA1c analyzers and design the new quality control strategy.Method We collected data of imprecision and inaccuracy from routine internal quality control ...
Xia Wang   +4 more
doaj   +1 more source

Topological self-dual configurations in a Lorentz-violating gauged O(3) sigma model [PDF]

open access: yes, 2015
We have studied the existence of topological Bogomol'nyi-Prasad-Sommerfield or self-dual configurations in a Lorentz-violating gauged $O(3)$ nonlinear sigma model, where $CPT$-even Lorentz-violating (LV) terms were introduced in both the gauge and ...
R. Casana, C. F. Farias, M. M. Ferreira
semanticscholar   +1 more source

A noncommutative sigma-model

open access: yesJournal of Noncommutative Geometry, 2011
We begin to study a sigma-model in which both the spacetime manifold and the two-dimensional string world-sheet are made noncommutative. We focus on the case where both the spacetime manifold and the two-dimensional string world-sheet are replaced by noncommutative 2-tori.
Varghese, M., Rosenberg, J.
openaire   +5 more sources

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