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[tex]\langle \psi_1|H|\psi_0\rangle[/tex]

where [itex]H[/itex] is the Hamiltonian. Can someone please explain how this formula is derived? Thx

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- #1

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[tex]\langle \psi_1|H|\psi_0\rangle[/tex]

where [itex]H[/itex] is the Hamiltonian. Can someone please explain how this formula is derived? Thx

- #2

Vanadium 50

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I'm afraid that if this isn't immediately obvious to you, Peskin and Schroeder is too advanced for you. Have you taken undergrad QM? What book did you use?

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- #4

Vanadium 50

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- #6

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Yes, I've seen it in this form

[tex]|\psi\rangle = e^{-i\frac{H}{\hbar}t}|\psi(0)\rangle[/tex]

I may look at Schiff to see if it is an equivalent formulation

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