
#1
Dec512, 06:34 AM

P: 2,453

It seems that the energy expectation value is independent of time.
I did it for an infinite square well. And when you time evolve your wave function the time evolution cancels when you complex conjugate it and then do the integral. <E>=<ψEψ> it seem like this might always independent of time, What do you guys think. I guess I could try to prove it in general. 



#2
Dec512, 08:04 AM

P: 178





#3
Dec512, 08:05 AM

Mentor
P: 10,809

If you have a timeindependent Hamiltonian, energy is always conserved in your system. This is a very fundamental result and it works both in classical and quantum mechanics.




#4
Dec512, 11:23 AM

P: 32

Question about expectation value. 


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