This book presents research in the field of theoretical physics and non-linear optics. Topics discussed include quantum field theory; higher dimensional model spaces and defects; non-linear refractive index theory; quark-pion coupling constant and ground-state baryon masses; the search for higgs bosons in two-higgs doublet models and the neutrino mass in a six dimensional E6 model.

Theoretical physics employs mathematical models and abstractions of physics in an attempt to explain natural phenomena. This book presents and discusses current research in the study of theoretical physics, including interfaces in nanometric dielectrics; thermodynamics of liquid metals; fractional oscillators; superconducting state parameters of Be-Zr glassy alloys and 3d-transition metal binary alloys.

An amorphous metal is a metallic material with a disordered atomic-scale structure. In contrast to most metals, which are crystalline and therefore have a highly ordered arrangement of atoms, amorphous alloys are non-crystalline. This new book presents and reviews research in the study of bulk metallic glasses.