It was late, in fact the answer is no from the onset, because of unit incohence. (this I saw afterwards).

But I did the calculation

Since a long time that I haven't made this calculation, I did like :

then I squared the operators :

which gave :

It's not the same, but I don't know if an error went inside..sorry.

It was nice to meet you, but this failed. Bye.

]]>Prove that will convert into .

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