According to Wikipedia, Fermi's golden rule can be summed up like this:
"We consider the system to begin in an eigenstate 
of a given Hamiltonian H0. We consider the effect of a (possibly time-dependent) perturbing Hamiltonian H'. If H' is time-independent, the system goes only into those states in the continuum that have the same energy as the initial state. If H' is oscillating as a function of time with an angular frequency ω, the transition is into states with energies that differ by 
from the energy of the initial state. In both cases, the one-to-many transition probability per unit of time from the state to a set of final states 
is given, to first order in the perturbation, by
where ρ is the density of final states (number of states per unit of energy) and 
is the matrix element (in bra-ket notation) of the perturbation H' between the final and initial states."
I like Jesus' better.
On the other hand, Jesus doesn't have a lab named after him.
Photo: Michael Kappel via Flickr (CC)
Posts
how am i supposed to learn something new everyday if you skip days? stop being selfish.
ReplyDeleteDear K K,
ReplyDeleteWhile I appreciate your enthusiasm for Wikibloogia, you clearly haven't read the slogan very closely. It explicitly says "You learn something new every day maybe."
Maybe.
That said, you're right. I will try to bloog every day.
For you.
Sincerely,
Wikibloogia
wait, i thought the maybe part meant that some of your posts would be ridiculous. yes? no? maybe.
ReplyDeleteeither way, i appreciate your commitment.
Okay you got me. That's what maybe meant.
ReplyDelete