JK423

Gold Member

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**[SOLVED] Evolution Operator**

If

**U**=Exp[-i

**H**t/h] is the evolution operator, and H the hamiltonian one,

i cant figure out how to derive the following equation.

Let`s call |E> an eigenstate of

**H**, E it`s eigenvalue and |J> a random basis.

Then:

<J|

**U**|E>=Exp[-iEt/h]*<J|E>.

??