Results 101 to 110 of about 25,385,750 (231)

The gauging of two-dimensional bosonic sigma models on world-sheets with defects [PDF]

, 2012
We extend our analysis of the gauging of rigid symmetries in bosonic two-dimensional sigma models with Wess–Zumino terms in the action to the case of world-sheets with defects.
K. Gawȩdzki, R. R. Suszek, K. Waldorf
semanticscholar   +1 more source

N = 2 supersymmetric sigma-models and duality [PDF]

, 2010
For two families of four-dimensional off-shell N = 2 supersymmetric nonlinear sigma-models constructed originally in projective superspace, we develop their formulation in terms of N = 1 chiral superfields.
A Galperin, A Galperin, A Karlhede, A Swann, AA Rosly, AS Galperin, B Wit de, B Wit de, B Wit de, B Wit de, B Zumino, B Zumino, CM Hull, D Jain, D Kaledin, D Kaledin, F Gonzalez-Rey, GW Gibbons, IL Buchbinder, IR Klebanov, J Bagger, J Jaegher De, J Wess, JH Park, K Galicki, L Álvarez-Gaumé, M Arai, M Arai, M Arai, M Roček, MF Sohnius, NJ Hitchin, P Fayet, Sergei M. Kuzenko, SJ Gates Jr, SJ Gates Jr, SJ Gates Jr, SJ Gates Jr, SM Kuzenko, SM Kuzenko, SM Kuzenko, SM Kuzenko, SM Kuzenko, SM Kuzenko, SM Kuzenko, TL Curtright, U Lindström, U Lindström, U Lindström, U Lindström, W Siegel   +50 more
core   +2 more sources

On classicalization in nonlinear sigma models [PDF]

, 2012
We consider the phenomenon of classicalization in nonlinear sigma models with both positive and negative target space curvature and with any number of derivatives.
R. Percacci, L. Rachwał
semanticscholar   +1 more source

A noncommutative sigma model

Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie, 2013
We replace the classical string theory notions of mapping between parameter space and world-time with noncommutative tori mapping between these spaces. The dynamics of mappings between different noncommutative tori are studied and noncommutative versions of the Polyakov action and the Euler-Lagrange equations are derived.
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

Artificial 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, Dongmei Wen, Weijia Wang, Minghuan Suo, Ting Hu   +4 more
doaj   +1 more source

Singular supersymmetric sigma models

, 2003
Supersymmetric non-linear sigma-models are described by a field dependent Kaehler metric determining the kinetic terms. In general it is not guaranteed that this metric is always invertible. Our aim is to investigate the symmetry structure of supersymmetric models in four dimensional space-time in which metric singularities occur.
Nyawelo, T. S., Riccioni, F., van Holten, J. W., Groot Nibbelink, S.   +3 more
openaire   +3 more sources

Quantum distillation of Hilbert spaces, semi-classics and anomaly matching

Journal of High Energy Physics, 2018
A symmetry-twisted boundary condition of the path integral provides a suitable framework for the semi-classical analysis of nonperturbative quantum field theories (QFTs), and we reinterpret it from the viewpoint of the Hilbert space. An appropriate twist
Gerald V. Dunne, Yuya Tanizaki, Mithat Ünsal   +2 more
doaj   +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., Isenberg, James, Liebling, Steven L.   +2 more
core   +1 more source

Finite sigma models and exact string solutions with Minkowski signature metric

, 1992
We consider $2d$ sigma models with a $D=2+N$ - dimensional Minkowski signature target space metric having a covariantly constant null Killing vector. These models are UV finite. The $2+N$-dimensional target space metric can be explicitly determined for a
A. A. Tseytlin, A. A. Tseytlin, A. A. Tseytlin, A. A. Tseytlin, A. A. Tseytlin, A. A. Tseytlin, A. A. Tseytlin, A. A. Tseytlin, A. A. Tseytlin, A. A. Tseytlin, A. A. Tseytlin, A. A. Tseytlin, A. Cooper, A. H. Chamseddine, A. H. Chamseddine, A. Morozov, A. Sen, A. Strominger, B. de Wit, B. Zumino, C. Callan, C. Callan, C. Duval, C. G. Callan, C. G. Callan, C. Teitelboim, D. Amati, D. Amati, D. Friedan, D. Friedan, D. Garfinkle, E. Witten, E. Witten, E. Witten, F. David, G. Curci, G. Horowitz, G. Horowitz, G. Horowitz, G. Mandal, G. Veneziano, H. W. Brinkmann, I. Antoniadis, I. Bars, I. Bars, I. Bars, I. Bars, I. Jack, J. Distler, J. Gracey, J. H. Horne, J. Polchinski, J. Russo, J. Russo, K. A. Meissner, K. A. Meissner, L. Alvarez-Gaumé, L. Alvarez-Gaumé, L. Alvarez-Gaumé, M. C. Prati, M. Crescimanno, M. D. Freeman, M. Gasperini, M. Mueller, M. T. Grisaru, M. T. Grisaru, M. T. Grisaru, P. Di Vecchia, P. E. Haagensen, P. Ginsparg, Q-Han Park, R. Dijkgraaf, R. E. Rudd, R. Guven, R. Jackiw, R. Myers, S. B. Giddings, S. Cecotti, S. Das, S. Elitzur, S. F. Hassan, S. P. de Alwis, S. R. Das, T. Banks, T. Banks, T. T. Burwick, V. Novikov, V. Novikov   +87 more
core   +1 more source

Local β-deformations and Yang-Baxter sigma model

Journal of High Energy Physics, 2018
Homogeneous Yang-Baxter (YB) deformation of AdS5 × S5 superstring is revisited. We calculate the YB sigma model action up to quadratic order in fermions and show that homogeneous YB deformations are equivalent to β-deformations of the AdS5 ×S5 background
Jun-ichi Sakamoto, Yuho Sakatani
doaj   +1 more source