Einstein equations without killing vectors, non-linear sigma models and self-dual yang-mills theory

1985 ◽  
pp. 280-298
Author(s):  
Norma Sánchez
Keyword(s):  
Sigma Models ◽  
Einstein Equations ◽  
Killing Vectors ◽  
Yang Mills ◽  
Non Linear ◽  
Linear Sigma Models

JET-GAUGE GROUPS AS BASIC SYMMETRIES OF NON-LINEAR SIGMA AND YANG–MILLS MODELS AND QUANTIZATION

2012 ◽  
Vol 09 (02) ◽  
pp. 1260006
Author(s):  
VICTOR ALDAYA ◽  
MANUEL CALIXTO ◽  
JULIO GUERRERO ◽  
FRANCISCO F. LOPEZ-RUIZ
Keyword(s):  
Sigma Models ◽  
Gauge Theories ◽  
Canonical Quantization ◽  
Group Approach ◽  
Abelian Gauge ◽  
Gauge Groups ◽  
Yang Mills ◽  
Non Linear ◽  
Non Linear Systems ◽  
Linear Sigma Models

The quantum description of non-linear systems finds a deep obstruction in the Canonical Quantization framework and Non-Linear Sigma Models constitute the best representatives. In this paper, we face the quantization of such systems on the grounds of a Group Approach to Quantization, and extend the algorithm to the specific case of massive Non-Abelian gauge theories. The basic geometric structures behind are the so-called "jet-gauge groups".

scholarly journals Supersymmetric black rings and non-linear sigma models

2010 ◽  
Vol 829 (1-2) ◽  
pp. 161-175 ◽  
Author(s):  
Yi-Xin Chen ◽  
Yong-Qiang Wang
Keyword(s):  
Sigma Models ◽  
Black Rings ◽  
Non Linear ◽  
Linear Sigma Models

scholarly journals Quantum corrections to generic branes: DBI, NLSM, and more

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Garrett Goon ◽  
Scott Melville ◽  
Johannes Noller
Keyword(s):  
Sigma Models ◽  
Quantum Corrections ◽  
Higher Dimensional ◽  
Symmetry Properties ◽  
Non Linear ◽  
Quantum Action ◽  
Manifest Covariance ◽  
Linear Sigma Models ◽  
Scalar Sector ◽  
Explicit Comparison

Abstract We study quantum corrections to hypersurfaces of dimension d + 1 > 2 embedded in generic higher-dimensional spacetimes. Manifest covariance is maintained throughout the analysis and our methods are valid for arbitrary co-dimension and arbitrary bulk metric. A variety of theories which are prominent in the modern amplitude literature arise as special limits: the scalar sector of Dirac-Born-Infeld theories and their multi-field variants, as well as generic non-linear sigma models and extensions thereof. Our explicit one-loop results unite the leading corrections of all such models under a single umbrella. In contrast to naive computations which generate effective actions that appear to violate the non-linear symmetries of their classical counterparts, our efficient methods maintain manifest covariance at all stages and make the symmetry properties of the quantum action clear. We provide an explicit comparison between our compact construction and other approaches and demonstrate the ultimate physical equivalence between the superficially different results.

scholarly journals Loop calculations in quantum-mechanical non-linear sigma models

1995 ◽  
Vol 446 (1-2) ◽  
pp. 211-222 ◽  
Author(s):  
Jan de Boer ◽  
Bas Peeters ◽  
Kostas Skenderis ◽  
Peter van Nieuwenhuizen
Keyword(s):  
Sigma Models ◽  
Quantum Mechanical ◽  
Non Linear ◽  
Linear Sigma Models

On the origin of anomalies in the quantum non-local charge for the generalized non-linear sigma models

1982 ◽  
Vol 210 (2) ◽  
pp. 181-192 ◽  
Author(s):  
E. Abdalla ◽  
M. Gomes ◽  
M. Forger
Keyword(s):  
Sigma Models ◽  
Local Charge ◽  
Non Linear ◽  
Non Local ◽  
Linear Sigma Models

Superspace formulation of new non-linear sigma models

1984 ◽  
Vol 238 (2) ◽  
pp. 349-366 ◽  
Author(s):  
S. James Gates
Keyword(s):  
Sigma Models ◽  
Non Linear ◽  
Linear Sigma Models

scholarly journals Twisting gauged non-linear sigma-models

2008 ◽  
Vol 2008 (02) ◽  
pp. 096-096 ◽  
Author(s):  
J.M Baptista
Keyword(s):  
Sigma Models ◽  
Non Linear ◽  
Linear Sigma Models
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