Static potential from spontaneous breaking of scale symmetry

From Yukawa’s Pion to Spontaneous Symmetry Breaking

What we now call particle physics started first as nuclear physics in the 1930s, and I have once proposed to call Ernest Lawrence and Hideki Yukawa the two founders of particle physics: The first invented the cyclotron, the second ‘‘invented’’ the meson theory, which together opened the door to the exploration of ever higher energy phenomena and to the discovery of particles of ever increasing ...

Nonperturbative Spontaneous Symmetry Breaking

One of the most astonishing results of quantum field theory is spontaneous symmetry breaking. One can say that it is the situation when something arises from the quantization. This means that on the quantum level one has something that was not present on the classical level. Coleman and Weinberg [1] write : “ . . . higher-order effects may qualitatively change the character of a physical theory...

Spontaneous Symmetry Breaking

THE FRANK KINETIC MODEL FOR SPONTANEOUS CHIRAL SYMMETRY BREAKING WITH VARIABLE CONCENTRATION OF THE ACHIRAL SUBSTRATE

This paper considers the possibility of spontaneous transition of aracemic mixture (composed of equal amounts of two enantiomeric species, say L and D) into a monochiral state (in which only one enantiomer, say L, is present). Transitions of this kind have been recently experimentally observed. A plausible approach to this phenomenon is a model put forward by Frank, based on simple laws of ...

Spontaneous CP Symmetry Breaking at the Electroweak Scale

We present a top-condensation model in which the CP symmetry is spontaneously broken at the electroweak scale due to the condensation of two composite Higgs doublets. In particular the CP -violating phase of the CKM matrix is generated. A simpler model where only one quark family is included is also discussed. In this case, for a general four-fermion interaction (Gtb 6= 0), the particle spectru...