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Niles
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Homework Statement
Hi all.
Lets say that we are looking at an operator Q, and two eigenstates given by |1> and |2>. The eigenstates |1> and |2> are not eigenstates of Q, but of some other operator H.
My question: Is <1|Q|1>, <1|Q|2>, <2|Q|1> and <2|Q|2> independent of the basis used as long as Q, |1> and |2> are given in the same basis?
Thanks in advance.Niles.
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