Dirac, P. A. M. Lectures on Quantum Field Theory (Lektsii po kvantovoy teorii polya), 1971. In Russian

Дирак П. Лекции по квантовой теории поля. / Пер. с англ. Б. А. Лысова; под ред. А. А. Соколова.
Москва : Мир, 1971.
244 с. Мягкая издательская обложка, обычный формат.
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Dirac, P. A. M. Lectures on Quantum Field Theory (Lektsii po kvantovoy teorii polya). / Trans. from English by B. A. Lysov; edited by A. A. Sokolov.
Moscow: Mir, 1971.
244 pp. Softcover, standard format.

This 1971 Russian edition preserves the legendary lectures of Paul Dirac (1902–1984), a figure whose name has become synonymous with the mathematical elegance of modern physics. Dirac, a Nobel laureate and Lucasian Professor of Mathematics at Cambridge, had a unique gift for distilling the most complex abstractions of the subatomic world into clear, logical structures. These lectures offer a rare chance to follow the thought process of the man who essentially invented the language of quantum field theory.
The text centers on Dirac's rigorous approach to the Hamiltonian formulation, laying a foundation for field quantization that differs markedly from the more widely known Feynman path-integral method. Dirac confronts the core challenges of the field, including the problem of infinities and the demands of relativistic invariance. His style is famously concise; he pursued "mathematical beauty" in his equations, convinced that a theory possessing genuine mathematical elegance is more likely to reflect physical truth.
The lectures also explore the introduction of bra-ket notation—a formalism Dirac himself devised to streamline operations on quantum states and which has since become the universal standard in the field. Published in the USSR by Mir, a publisher renowned for its high-quality translations of major Western scientific works, this volume became a cornerstone for Soviet theoretical physicists during the "Silver Age" of the country's science. For students and collectors alike, this book is far more than a textbook: it serves as a direct connection to the mid-20th-century revolution in our understanding of matter and fundamental forces.