Relativistic Quantum Mechanics is a framework that combines the principles of quantum mechanics with the theory of relativity, developed by Albert Einstein. It addresses the behavior of particles moving at speeds close to the speed of light, ensuring that the laws of physics remain consistent across different reference frames. This approach is essential for understanding high-energy particles in fields like particle physics. One of the key outcomes of Relativistic Quantum Mechanics is the prediction of antimatter, which is a counterpart to regular matter. The Dirac Equation, formulated by Paul Dirac, is a fundamental equation in this field that describes the behavior of fermions, such as electrons, while incorporating both quantum mechanics and special relativity.