- #1
dyn
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- 61
When re-arranging equations with bras and kets I was under the impression that the order of the bras and kets had to be maintained unless they formed an inner product ie. just a complex number in which case they could be moved around ? Is this the case ? As I am confused about the following equation I found
Tr |u><u|v><v| = <v|u><u|v>
In this example the bra <v| seems to have jumped from the end to the start.
Tr |u><u|v><v| = <v|u><u|v>
In this example the bra <v| seems to have jumped from the end to the start.