Quantum Field Theory for Leg Spinners 25 / 10 / 10 Lecture Notes 3 : Bosonic Quantum Field Theory
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چکیده
Quantization of the Field This involves two main steps • make basic observables into operators, obeying canonical commutation relations (CCRs) • look for Hilbert space representations for these operators. Strategy: “put the field in a box” = pretend that the space is a torus = impose periodic boundary conditions of size L. The motivation for this is to get a discrete spectrum then to play with L, in particular to consider L → ∞ and see what happens. Original motivation for this action: finding the simplest classical relativistically invariant wave equation.
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