scholarly journals An ideal toy model for confining, walking and conformal gauge theories: the O(3) sigma model with ϑ-term

2012 ◽  
Vol 2012 (5) ◽  
Author(s):  
Dániel Nógrádi
Keyword(s):  
Sigma Model ◽  
Gauge Theories ◽  
Conformal Gauge

scholarly journals N$$ \mathcal{N} $$ = 2 conformal gauge theories at large R-charge: the SU(N) case

2020 ◽  
Vol 2020 (3) ◽  
Author(s):  
Matteo Beccaria ◽  
Francesco Galvagno ◽  
Azeem Hasan
Keyword(s):  
Gauge Theories ◽  
Conformal Gauge

scholarly journals Entanglement entropy of 3-d conformal gauge theories with many flavors

2012 ◽  
Vol 2012 (5) ◽  
Author(s):  
Igor R. Klebanov ◽  
Silviu S. Pufu ◽  
Subir Sachdev ◽  
Benjamin R. Safdi
Keyword(s):  
Gauge Theories ◽  
Entanglement Entropy ◽  
Conformal Gauge

scholarly journals SOUND WAVES IN STRONGLY COUPLED NON-CONFORMAL GAUGE THEORY PLASMA

2005 ◽  
Vol 20 (27) ◽  
pp. 6298-6306 ◽  
Author(s):  
PAOLO BENINCASA
Keyword(s):  
Gauge Theory ◽  
Bulk Viscosity ◽  
Speed Of Sound ◽  
Gauge Theories ◽  
Temperature Limit ◽  
Sound Waves ◽  
Strongly Coupled ◽  
Conformal Theory ◽  
High Temperature Limit ◽  
Conformal Gauge

Gauge/string correspondence provides an efficient method to investigate gauge theories. In this talk we discuss the results of the paper (to appear) by P. Benincasa, A. Buchel and A. O. Starinets, where the propagation of sound waves is studied in a strongly coupled non-conformal gauge theory plasma. In particular, a prediction for the speed of sound as well as for the bulk viscosity is made for the [Formula: see text] gauge theory in the high temperature limit. As expected, the results achieved show a deviation from the speed of sound and the bulk viscosity for a conformal theory. It is pointed out that such results depend on the particular gauge theory considered.

scholarly journals Vacuum states of mass deformations of and conformal gauge theories and their brane interpretations

2001 ◽  
Vol 609 (3) ◽  
pp. 283-312 ◽  
Author(s):  
Stephen G. Naculich ◽  
Howard J. Schnitzer ◽  
Niclas Wyllard
Keyword(s):  
Gauge Theories ◽  
Vacuum States ◽  
Conformal Gauge

KÄHLER SIGMA MODELS FROM SUPERSYMMETRIC GAUGE THEORIES

1989 ◽  
Vol 04 (17) ◽  
pp. 4391-4436 ◽  
Author(s):  
A. C. W. KOTCHEFF ◽  
G. M. SHORE
Keyword(s):  
Sigma Models ◽  
Sigma Model ◽  
Gauge Theories ◽  
Chiral Symmetry Breaking ◽  
Supersymmetric Gauge Theories ◽  
Target Manifold ◽  
Alignment Problem ◽  
Kähler Potential ◽  
Supersymmetric Gauge

The geometrical structure of the noncompact, nonhomogeneous Kähler sigma models arising from supersymmetric gauge theories is described. Topics discussed include the choice of target manifold for the sigma model, the supersymmetric vacuum alignment problem and the nature of chiral symmetry breaking, the role of isometry anomalies, the construction of the Kähler potential and metric, and the embedding of the conventional compact coset space sigma model in the supersymmetric Kähler model.

NEARLY CONFORMAL GAUGE THEORIES ON THE LATTICE

2010 ◽  
Vol 25 (27n28) ◽  
pp. 5162-5174 ◽  
Author(s):  
ZOLTÁN FODOR ◽  
KIERAN HOLLAND ◽  
JULIUS KUTI ◽  
DÁNIEL NÓGRÁDI ◽  
CHRIS SCHROEDER
Keyword(s):  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Gauge Theories ◽  
Matrix Theory ◽  
Chiral Symmetry Breaking ◽  
Chiral Condensate ◽  
Theoretical Understanding ◽  
Conformal Window ◽  
Running Coupling ◽  
Conformal Gauge

We present selected new results on chiral symmetry breaking in nearly conformal gauge theories with fermions in the fundamental representation of the SU (3) color gauge group. We found chiral symmetry breaking (χSB) for all flavors between Nf = 4 and Nf = 12 with most of the results discussed here for Nf = 4, 8, 12 as we approach the conformal window. To identify χSB we apply several methods which include, within the framework of chiral perturbation theory, the analysis of the Goldstone spectrum in the p -regime and the spectrum of the fermion Dirac operator with eigenvalue distributions of random matrix theory in the ϵ-regime. Chiral condensate enhancement is observed with increasing Nf when the electroweak symmetry breaking scale F is held fixed in technicolor language. Important finite-volume consistency checks from the theoretical understanding of the SU(Nf) rotator spectrum of the δ-regime are discussed. We also consider these gauge theories at Nf = 16 inside the conformal window. Our work on the running coupling is presented separately.1

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