scholarly journals Dirac mass generation from crystal symmetry breaking on the surfaces of topological crystalline insulators

2015 ◽  
Vol 14 (3) ◽  
pp. 318-324 ◽  
Author(s):  
Ilija Zeljkovic ◽  
Yoshinori Okada ◽  
Maksym Serbyn ◽  
R. Sankar ◽  
Daniel Walkup ◽  
...  
Keyword(s):  
Symmetry Breaking ◽  
Crystal Symmetry ◽  
Mass Generation ◽  
Dirac Mass ◽  
Topological Crystalline Insulators

scholarly journals Crystal symmetry breaking in few-quintuple Bi2Te3 films: Applications in nanometrology of topological insulators

2010 ◽  
Vol 96 (15) ◽  
pp. 153103 ◽  
Author(s):  
K. M. F. Shahil ◽  
M. Z. Hossain ◽  
D. Teweldebrhan ◽  
A. A. Balandin
Keyword(s):  
Symmetry Breaking ◽  
Topological Insulators ◽  
Crystal Symmetry

Crystal symmetry breaking in thin square nanosheets of the topological insulator bismuth telluride

2020 ◽  
Vol 501 ◽  
pp. 144268
Author(s):  
Yujie Liang ◽  
Yinsi Wang ◽  
Guling Zhang ◽  
Dong Zeng ◽  
Min Zhu ◽  
...  
Keyword(s):  
Symmetry Breaking ◽  
Bismuth Telluride ◽  
Topological Insulator ◽  
Crystal Symmetry

TOPOLOGICAL MASS GENERATION, ELECTROWEAK SYMMETRY BREAKING AND BARYOGENESIS

2009 ◽  
Vol 24 (09) ◽  
pp. 703-711
Author(s):  
B. BASU ◽  
P. BANDYOPADHYAY
Keyword(s):  
Phase Transition ◽  
Symmetry Breaking ◽  
Electroweak Symmetry Breaking ◽  
Chiral Anomaly ◽  
Electroweak Theory ◽  
Electroweak Symmetry ◽  
Mass Generation ◽  
Two Stages ◽  
Topological Mass ◽  
Good Agreement

We have studied here electroweak symmetry breaking and baryogenesis from the viewpoint of topological mass generation through chiral anomaly. It is shown that the SU(2) gauge symmetry of the electroweak theory breaks in two stages. In the final stage we have Z-strings produced at the phase transition. We have also studied the problem of baryogenesis in this formalism and the ratio of the baryon–antibaryon is found to be in good agreement with the observed value.

scholarly journals ANOMALOUS FERMION MASS GENERATION AT THREE LOOPS

2013 ◽  
Vol 28 (22) ◽  
pp. 1350083 ◽  
Author(s):  
APOSTOLOS PILAFTSIS
Keyword(s):  
Gauge Theory ◽  
Quantum Gravity ◽  
Symmetry Breaking ◽  
Spontaneous Symmetry Breaking ◽  
Model Building ◽  
Heavy Fermions ◽  
Fermion Mass ◽  
Mass Generation ◽  
Fermion Masses ◽  
Gravity Effects

We present a novel mechanism for generating fermion masses through global anomalies at the three-loop level. In a gauge theory, global anomalies are triggered by the possible existence of scalar or pseudoscalar states and heavy fermions, whose masses may not necessarily result from spontaneous symmetry breaking. The implications of this mass-generating mechanism for model building are discussed, including the possibility of creating low-scale fermion masses by quantum gravity effects.

scholarly journals QCD beyond diagrams

2021 ◽  
Vol 36 (21) ◽  
pp. 2130012
Author(s):  
Michael Creutz
Keyword(s):  
Perturbation Theory ◽  
Symmetry Breaking ◽  
Quantum Chromodynamics ◽  
Chiral Symmetry ◽  
Chiral Symmetry Breaking ◽  
Strong Interactions ◽  
Quark Confinement ◽  
Mass Generation ◽  
Diagrammatic Perturbation Theory

Quantum chromodynamics (QCD), the theory of the strong interactions, involves quarks interacting with non-Abelian gluon fields. This theory has many features that are difficult to impossible to see in conventional diagrammatic perturbation theory. This includes quark confinement, mass generation and chiral symmetry breaking. This paper is a colloquium level overview of the framework for understanding how these effects come about.

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