Always remember & never forget . . .

[fflo]

... the Fermi Golden Rule:

$$B(\omega,v-v_*)=\frac{1}{8\pi^2}|\omega\cdot(v-v_*)||{\widehat \phi}
((\omega\cdot(v-v_*))\omega)|^2$$

---you know, where the hat $\sphat$ denotes the Fourier transform and $\phi$ is a two-body interaction potential.

Comments

[peteralway.livejournal.com]

(raises hand) Ooh! Ooh! I used to understand Fourier transforms! Used them to quantify the sphericity of microscopic H-bombs. Before I was paid not to. And ultimately not paid not to.

[paperkingdoms]

Fourier transforms have unexpectedly become one of my favorites this semester. It gets really fun when you get to stack up the hats: a ^ on top of a v on top of a ~ for example [which popped up in class recently].

[elmur-fudd.livejournal.com]

I think you just broke me.

[groovesinorbit]

Hey, I've heard of Fermi! I'm also working on an alum whose last name is Fourier. Your transforms are making my searching for him kind of a pain.

[lovelikeyeast.livejournal.com]

Sometimes I just don't understand you, Fflo.

On the other hand, it looks good.