Is the Energy Level a Root of the Function in Quantum Operator Theory?

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The discussion centers on the relationship between energy levels and roots of functions in Quantum Operator Theory, specifically addressing the equation f( \hat H ) | \Psi > = 0, where | \Psi > is an eigenvalue of the operator T. It is established that if \hat T | \Psi > = E_{n} | \Psi >, then f(E_{n}) = 0, indicating that energy levels correspond to the roots of the function f(x). The terms involved include the Hamiltonian operator (H) and the Kinetic Energy operator (T), clarifying their roles in the context of quantum mechanics.

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tpm
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let be:

[tex]f( \hat H ) | \Psi > =0[/tex] where [tex]| \Psi >[/tex] is an 'Eigenvalue'

of the operator 'T' my question is if in this case the number

[tex]\hat T | \Psi > =E_{n} | \Psi >[/tex] satisfy [tex]f( E_{n}) =0[/tex]

so the energies are precisely the roots of f(x).
 
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|x> usually means an element in a Hilbert space, doesn't it, Jose? Why is that an 'Eigenvalue'. What is f. What is H? What is H-hat? What is T hat?
 
I believe H is the Hamiltonian and T is the Kinetic Energy operators.

You may have better luck posting this in the Quantum Physics section.
 

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