Despite the special nature of these systems, they show interesting behavior such as phase transitions to states with such properties as permanent magnetization and superconductivity. Of particular interest are correlation functions which describe the behavior of widely separated particles in the system in ordered and disordered phases. There are cases in which these simplified models capture the behavior of real physical systems, and through their study we can gain important insights into behavior of matter in condensed or solid states. Recently, a new form of carbon molecules has been discovered. The energy levels of these molecules can be understood on the basis of a simplified picture called the Huckel model.
Calculations are under way to apply the model to tubes and large molecules of fullerenes.
It was found that for repulsive cases the condensate extends to a region of the trap where the trap potential is less than a fixed value determined by the total number of trapped atoms. Work is continuing on light scattering by the condensate and on the possibility of an Andronikashvilli experiment. Professor Van Nieuwenhuizen teaching quantum field theory. These massive objects are created in the collisions of light quarks in the reactions mentioned. The theoretical predictions for differential and total cross sections can be compared with present experimental data from CERN, Fermilab and DESY and also used to predict production rates for future experimental facilities.