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An Introduction to Quantum Field Theory is a textbook intended for the graduate physics course covering relativistic quantum mechanics, quantum electrodynamics, and Feynman diagrams. The authors make these subjects accessible through carefully worked examples illustrating the technical aspects of the subject, and intuitive explanations of what is going on behind the mathematics. After presenting the basics of quantum electrodynamics, the authors discuss the theory of renormalization and its relation to statistical mechanics, and introduce the renormalization group. This discussion sets...

Challenging the idea that nihilism has supplanted metaphysics, Vittorio Possenti finds in this philosophical turn the grounds for a mature renewal of metaphysics. Possenti takes the reader on a "third voyage" that goes beyond the "second voyage" indicated by Plato in the Phaedo. He traces the ascendancy of nihilism in philosophy, offering critical examinations of Nietzsche, Gentile, Heidegger, Habermas, Husserl, Gadamer, Ricoeur, and Vattimo. With penetrating accounts of philosophical movements such as hermeneutics and logical empiricism, rich with both historical and theoretical...