Results 41 to 50 of about 23,658,748 (362)
CP(N) sigma model on a finite interval revisited [PDF]
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]
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]
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]
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
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A Mathematical Theory of the Gauged Linear Sigma Model [PDF]
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]
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 ...
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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]
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
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