As the title says the book starts from the canonical operator approach with fields being an infinite set of coupled oscillators then carefully derives their quantum representation and finally shows the connection to path integrals from first principles with ample applications. Quantum field theory from operators to path integrals kerson huang john wiley sons apr 26 2010 science 438 pages 0 reviews a new updated and enhanced edition of the classic work which was welcomed for its general approach and self sustaining organization of the chapters written by a highly respected textbook writer and researcher this book has a more general scope and adopts . Quantum field theory from operators to path integrals. Common integrals in quantum field theory are all variations and generalizations of gaussian integrals to the complex plane and to multiple dimensions other integrals can be approximated by versions of the gaussian integral fourier integrals are also considered
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