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The Dirac equation plays a fundamental role in relativistic quantum mechanics and its solution is great interest for the theoretical understanding of broad class of problems in the theory of elementary particles. Studying of bound states gives us a lot of information about the nature of the system. An outstanding goal is not to discuss Quantum Field Theory and Quantum Electrodynamics in this book. However, we shall discuss the Dirac equation which reduces to four coupled partial differential equation, which describes the relativistic electron and other spin half particles. In addition to this, the aims of this book is to evaluate and study the bound state of the relativistic hydrogen like atom, Dirac particle in a spherical attractive central square well potential. Finally, we study the solution of the relativistic Dirac equation for a Yukawa-type potential and compare with the non-relativistic Schrodinger spectrum of the energy level for hydrogen atom.
About the author
My name is Tesfay Gebremariam, male, born on 17th of July 1983 and I am from Ethiopia. I was amongst the top ten students of my class of 150 students. I was working in Arbaminch University, Department of Physics (Governmental Academic Institute of Ethiopia) as lecturer from (2010-2014) . Currently, I am a PhD Candidate in Quantum Information, China
