# Hamiltonian flow?

I was wondering what the Hamiltonian flow actually is?

So let $(x(t),p(t))' = X_{H}(x(t),p(t))$ are the Hamilton's equations and $X_H$ the Hamiltonian vector field.

Then the Hamiltonian flow is the map $\phi^{t}(x(0),p(0)) = (x(t),p(t))$ and in particular $\phi^{0}= \operatorname{id}.$

Moreover we have that $d_t \phi^{t} = X_H(x(t),p(t)).$ Is this correct?

• "Is this correct?" questions are not good for this SE, since the potential answer "Yes" is too short to even submit as an answer. May 4, 2015 at 21:52
• WP. Aug 16, 2018 at 1:22