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from Part III - A Short Course in Quantum Field Theory
Published online by Cambridge University Press: 09 May 2024
This chapter introduces the formal “second quantization” method for bosons in quantum field theory. It is shown that phonons (sound particles) and photons (light particles) are simple extensions of the physics of a spring-like oscillator. The connection of boson states to classical waves is shown in a discussion of “coherent states.”
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