Module10 lecture1 Quantization of Light
Автор: James Freericks
Загружено: 2021-06-16
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Quantization of light, Quantum Mechanics, Physics 253, Georgetown University, Fall 2020
In this lecture, we quantize light and show how the harmonic oscillator is used in the quantization process. We work inside a finite box to do this. First the classical Hamiltonian is converted into a sum over harmonic oscillator terms, called the quadrature operators. Then we quantize. One immediately can solve this because it is the sum over a series of harmonic oscillators. We show how the average of the electric field vanishes in any state with a definite number of photons in it. But the fluctuations are nonzero. This holds even for the ground state. We then look at uncertainty in the quadrature operators.
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