8.323 | Spring 2023 | Graduate

Relativistic Quantum Field Theory I

Lecture 4: Canonical Quantization of a Free Scalar Field Theory

Canonical quantization of a free scalar field theory, canonical commutation relations, mode expansion, a free field theory can be viewed as an infinite number of harmonic oscillators, expressing the Hamiltonian and other conserved charges in terms of oscillators, vacuum energy, structure of Hilbert space

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