Three-dimensional static speckle fields Part I Theory and numerical investigation

Three-dimensional numerical simulation of temperature and flow fields in a Czochralski growth of germanium

For a Czochralski growth of Ge crystal, thermal fields have been analysed numerically using the three-dimensional finite volume method (FLUENT package). The arrangement used in a real Czochralski crystal growth lab included a graphite crucible, heat shield, heating device, thermal insulation and chamber including two gas outlets. We have considered two cases for calculations, which are configur...

Three-dimensional strings I. Classical theory

I consider a three-dimensional string theory whose action, besides the standard area term, contains one of the form ∫ Σ ǫμνσX dX ∧ dX. In the case of closed strings this extra term has a simple geometrical interpretation as the volume enclosed by the surface. The associated variational problem yields as solutions constant mean curvature surfaces. One may then show the equivalence of this equati...

Yang-mills Fields on the 4-dimensional Torus. Part I: Classical Theory

We review some of the most important results obtained over the years on the study of Yang-Mills fields on the four dimensional torus at the classical level.

Part I: Concept and Theory

Static Potential and Local Color Fields in Unquenched Three-Dimensional Lattice QCD

String breaking by dynamical quarks in (2+1)-d lattice QCD is demonstrated in this project, by measuring the static potential and the local color-electric field strength between a heavy quark and antiquark pair at large separations. Simulations are done for unquenched SU(2) color with two flavors of staggered quarks. An improved gluon action is used which allows simulations to be done on coarse...