Commit 7b5a853f authored by T. van der Sar's avatar T. van der Sar
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Update 4_ZPFs.md - typo

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......@@ -58,7 +58,7 @@ Imagine an empty box that contains electromagnetic radiation. Classically, each
- mode $2$: $\quad E_2 \cos{(\omega_2 t)} \sin{(\frac{2 \pi x}{L})}$
- mode $n$: $\quad E_n \cos{(\omega_n t)} \sin{(\frac{n \pi x}{L})}$
Associated with every electric field $\vec{E}|, there is a magnetic field $\vec{B}$ that oscillates out of phase with respect to the electric field (this follows from Maxwell's Equations). The total energy is given by:
Associated with every electric field $\vec{E}$, there is a magnetic field $\vec{B}$ that oscillates out of phase with respect to the electric field (this follows from Maxwell's Equations). The total energy is given by:
$$
E = \int (\epsilon_0 |\vec{E}|^2 + \mu_0 |\vec{B}|^2) d^3 x
......
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