Danielk010's latest activity
-
Danielk010 replied to the thread Undergrad How do you apply perturbation theory to a magnetic field Hamiltonian?.Sorry, I tried to insert LaTeX in the TL;DR but it did not display correctly. I am also past the time limit to edit a post. Here is... -
Danielk010 posted the thread Undergrad How do you apply perturbation theory to a magnetic field Hamiltonian? in Quantum Physics.I understand that the first order results would be ##\langle \phi_n^0 | -\mu * B | \phi_n^0 \rangle## = ##\langle \phi_n^0 |...
-
Danielk010 replied to the thread Undergrad How do you derive $x = ihbar d/dp$? Why does this equation hold true?.Hi, thank you response. This is from an homework problem, in which the TA for my class has already provided us the solution. They don't...
-
Danielk010 posted the thread Undergrad How do you derive $x = ihbar d/dp$? Why does this equation hold true? in Quantum Physics.The equation comes from the solution of a homework equation we were given from A Modern Approach to Quantum Mechanics: 2nd edition by...
-
Danielk010 reacted to renormalize's post in the thread Undergrad Help Proving the Momentum Shift Operator with
Like.
Yes you did. You should... -
Danielk010 replied to the thread Undergrad Help Proving the Momentum Shift Operator.I do understand how to apply the product rule for differentiation and take the derivative of the exponential function. Thank you so much...
-
Danielk010 replied to the thread Undergrad Help Proving the Momentum Shift Operator.From the rightmost part of the equation, $$\int dx \, \psi^*(x) \frac{\hbar}{i} \frac{\partial}{\partial x} \psi(x) (e^{{-i p_0 x /...
-
I am stuck on proving: ##\langle p_x \rangle \rightarrow \langle p_x \rangle + p_0## given ##\langle x \mid \psi \rangle \;\rightarrow\...