Study of Phase Transitions and Critical Points: in the Rare-Earth Region in the Framework of the Interacting Boson Model (IBM-1)

The field of phase transitions and critical phenomena continues to be active in research, producing a steady stream of interesting and fruitful results. It has moved into a central place in condensed matter studies. Statistical physics, and more specifically, the theory of transitions between states of matter, more or less defines what we know about 'everyday' matter and its transformations. The major aim of this work is to study quantum phase transitions and critical points for some chains of nuclei in the rare-earth region and to locate these nuclei on the critical points X(5) and E(5) by employing the most general form of the Interacting Boson Model (IBM-1).

Dr.Fouad Majeed born in Babylon (1974).He is academic staff member at University of Babylon.His field of interests are nuclear reaction and nuclear structure.He has received awards as visiting scientist form the Abdus Salam(ICTP and TWAS-CNPq.He obtained his B.Sc. from Al-Mustansiriyah University 1997,his M.Sc. and Ph.D. from Al-Nahrain University.