scholarly journals Chiral Symmetry Breaking in Quantum Field Theory

2013 ◽  
Vol 85 (0) ◽  
pp. 244-249
Author(s):  
T. W. Appelquist
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Chiral Symmetry Breaking ◽  
Quantum Field

scholarly journals The Dirac Sea, T and C Symmetry Breaking, and the Spinor Vacuum of the Universe

Universe ◽  
2021 ◽  
Vol 7 (5) ◽  
pp. 124
Author(s):  
Vadim Monakhov
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Symmetry Breaking ◽  
Momentum Space ◽  
Quantum Field ◽  
Conjugation Operator ◽  
Dirac Sea ◽  
Canonical Anticommutation Relations ◽  
The Universe ◽  
Dirac Conjugation

We have developed a quantum field theory of spinors based on the algebra of canonical anticommutation relations (CAR algebra) of Grassmann densities in the momentum space. We have proven the existence of two spinor vacua. Operators C and T transform the normal vacuum into an alternative one, which leads to the breaking of the C and T symmetries. The CPT is the real structure operator; it preserves the normal vacuum. We have proven that, in the theory of the Dirac Sea, the formula for the charge conjugation operator must contain an additional generalized Dirac conjugation operator.

Stem Cell Differentiation Stage Factors and their Role in Triggering Symmetry Breaking Processes during Cancer Development: A Quantum Field Theory Model for Reprogramming Cancer Cells to Healthy Phenotypes

2019 ◽  
Vol 26 (6) ◽  
pp. 988-1001 ◽  
Author(s):  
P.M. Biava ◽  
F. Burigana ◽  
R. Germano ◽  
P. Kurian ◽  
C. Verzegnassi ◽  
...  
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Stem Cell ◽  
Cell Differentiation ◽  
Symmetry Breaking ◽  
Cancer Cells ◽  
Stem Cell Differentiation ◽  
Cancer Development ◽  
Quantum Field ◽  
Differentiation Stage

A long history of research has pursued the use of embryonic factors isolated during cell differentiation processes for the express purpose of transforming cancer cells back to healthy phenotypes. Recent results have clarified that the substances present at different stages of cell differentiation—which we call stem cell differentiation stage factors (SCDSFs)—are proteins with low molecular weight and nucleic acids that regulate genomic expression. The present review summarizes how these substances, taken at different stages of cellular maturation, are able to retard proliferation of many human tumor cell lines and thereby reprogram cancer cells to healthy phenotypes. The model presented here is a quantum field theory (QFT) model in which SCDSFs are able to trigger symmetry breaking processes during cancer development. These symmetry breaking processes, which lie at the root of many phenomena in elementary particle physics and condensed matter physics, govern the phase transitions of totipotent cells to higher degrees of diversity and order, resulting in cell differentiation. In cancers, which share many genomic and metabolic similarities with embryonic stem cells, stimulated redifferentiation often signifies the phenotypic reversion back to health and nonproliferation. In addition to acting on key components of the cellular cycle, SCDSFs are able to reprogram cancer cells by delicately influencing the cancer microenvironment, modulating the electrochemistry and thus the collective electrodynamic behaviors between dipole networks in biomacromolecules and the interstitial water field. Coherent effects in biological water, which are derived from a dissipative QFT framework, may offer new diagnostic and therapeutic targets at a systemic level, before tumor instantiation occurs in specific tissues or organs. Thus, by including the environment as an essential component of our model, we may push the prevailing paradigm of mutation-driven oncogenesis toward a closer description of reality.

ON CHIRAL SYMMETRY BREAKING WITH MASSLESS FERMIONS

1994 ◽  
Vol 09 (35) ◽  
pp. 3285-3291
Author(s):  
RAINER DICK
Keyword(s):  
Field Theory ◽  
Conformal Field Theory ◽  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Lorentz Group ◽  
Chiral Symmetry Breaking ◽  
General Structure ◽  
Transformation Behavior ◽  
Conformal Field ◽  
Massless Fermions

It is shown that Weyl spinors in Minkowski space are isomorphic to primary fields of half-integer conformal weights. This yields representations of fermionic two-point functions in terms of correlators of primary fields with a factorized transformation behavior under the Lorentz group. As an application we determine the general structure of the corresponding Lorentz covariant correlators by methods similar to that employed in conformal field theory to determine two- and three-point functions of primary fields. In particular, the chiral symmetry breaking terms resemble fermionic two-point functions of 2-D CFT up to a function of the product of momenta.

Kℓ3 decay in quantum field theory with chiral symmetry

1976 ◽  
Vol 64 (2) ◽  
pp. 201-202 ◽  
Author(s):  
D.I. Kazakov ◽  
V.N. Pervushin ◽  
M.K. Volkov
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Chiral Symmetry ◽  
Quantum Field
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