Relativistic Quantum Theory of Particles. I

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Focusing on the foundational concepts of relativistic quantum theory, this first volume prepares readers for a deeper exploration in the subsequent volume. It introduces essential notation, terminology, and ideas, beginning with the principle of relativity and progressing through key topics like measurements and renormalization in quantum electrodynamics. Unlike traditional texts, it emphasizes particles as the core components of the theory, treating quantum fields as mathematical tools for constructing interactions. A solid understanding of non-relativistic quantum mechanics is recommended for readers.