Results 101 to 110 of about 1,518,477 (199)
The Bajnok-Janik formula and wrapping corrections
, 2010 We write down the simplified TBA equations of the $AdS_5 \times S^5$ string sigma-model for minimal energy twist-two operators in the sl(2) sector of the model.
AV Kotikov +29 more
core +1 more source
Exact Results for Supersymmetric Sigma Models
, 1991 We show that the metric and Berry's curvature for the ground states of $N=2$ supersymmetric sigma models can be computed exactly as one varies the Kahler structure.
A. D'Adda +15 more
core +2 more sources
Correlations Between Metallurgical Characterization Studies, Exploratory Mechanical Tests, and Continuum Mechanics Approaches to Constitutive Equations [PDF]
, 1983 Austenitic stainless steels, such as types 316 and 304, are widely used as pressure vessel materials in the temperature range of 425 to 650 C. Stainless steel specimens were tested to rupture at two different stress levels sigma and sigma 2 sigma 1 sigma
Moteff, J. +2 more
core +1 more source
Critical Phenomena in Nonlinear Sigma Models
, 2000 We consider solutions to the nonlinear sigma model (wave maps) with target space S^3 and base space 3+1 Minkowski space, and we find critical behavior separating singular solutions from nonsingular solutions.
Hirschmann, Eric W. +2 more
core +1 more source
, 2000 We investigate the Poisson-Sigma model on the classical and quantum level. In the classical analysis we show how this model includes various known two-dimensional field theories. Then we perform the calculation of the path integral in a general gauge, and demonstrate that the derived partition function reduces to the familiar form in the case of 2d ...
Hirshfeld, Allen C. +1 more
openaire +2 more sources
Tropical amplitudes for colored Lagrangians
Journal of High Energy PhysicsRecently a new formulation for scattering amplitudes in Tr(Φ3) theory has been given based on simple combinatorial ideas in the space of kinematic data.
Nima Arkani-Hamed +3 more
doaj +1 more source
Moduli spaces of instantons in flag manifold sigma models. Vortices in quiver gauge theories
Journal of High Energy PhysicsIn this paper, we discuss lumps (sigma model instantons) in flag manifold sigma models. In particular, we focus on the moduli space of BPS lumps in general Kähler flag manifold sigma models. Such a Kähler flag manifold, which takes the form U n 1 + ⋯ + n
Toshiaki Fujimori +2 more
doaj +1 more source
Nuclear Physics BWe construct an integrable sigma model with a generalized F structure, which involves a generalized Nijenhuis structure J satisfying J3=−J. Utilizing the expression of the generalized complex structure on the metric Lie group manifold G in terms of ...
A. Rezaei-Aghdam, A. Taghavi
doaj +1 more source
PECHCV, PECHFV, PEFHCV and PEFHFV: A set of atmospheric, primitive equation forecast models for the Northern Hemisphere, volume 3 [PDF]
As part of the SEASAT program of NASA, a set of four hemispheric, atmospheric prediction models were developed. The models, which use a polar stereographic grid in the horizontal and a sigma coordinate in the vertical, are: (1) PECHCV - five sigma ...
Pearce, M. L., Wellck, R. E.
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Circles and triangles, the NLSM and Tr(Φ3)
Journal of High Energy PhysicsA surprising connection has recently been made between the amplitudes for Tr(Φ3) theory and the non-linear sigma model (NLSM). A simple shift of kinematic variables naturally suggested by the associahedron/stringy representation of Tr(Φ3) theory yields ...
Nima Arkani-Hamed, Carolina Figueiredo
doaj +1 more source