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flyusx's latest activity
flyusx
replied to the thread
Continuity Equation for a Dimensionless Harmonic Oscillator
.
In this particular case, since I wasn't introduced to the concept of dimensionless systems, would it be okay to use the ##\hbar=m=ω=1##...
Apr 12, 2024
flyusx
replied to the thread
Continuity Equation for a Dimensionless Harmonic Oscillator
.
So ##\hbar=m=1## gets the right answer but the proper way to solve the problem is to define non-dimensional momentum and position...
Apr 12, 2024
flyusx
replied to the thread
Continuity Equation for a Dimensionless Harmonic Oscillator
.
I'm sort of confused. Are you saying ##\hbar=m=1## is coincidentally the right answer and you agree with vela in that: I must derive...
Apr 12, 2024
flyusx
replied to the thread
Continuity Equation for a Dimensionless Harmonic Oscillator
.
So ##\hbar=m=1## isn't valid? According to kurkman, ##\hbar=m=1## is what's done in Zettili's world.
Apr 11, 2024
flyusx
replied to the thread
Continuity Equation for a Dimensionless Harmonic Oscillator
.
I understand the point about getting dimensionless operators but I don't quite see how this would help. In this exercise, Zettili...
Apr 11, 2024
flyusx
replied to the thread
Continuity Equation for a Dimensionless Harmonic Oscillator
.
Thanks. I find that if I set ##\hbar=m=1##, I get the right answer.
Apr 11, 2024
flyusx
replied to the thread
Continuity Equation for a Dimensionless Harmonic Oscillator
.
If I set ##\hbar=m=1##, my answer obeys the continuity equation perfectly. Is this what 'dimensionless' implies (though t is not set to...
Apr 11, 2024
flyusx
posted the thread
Continuity Equation for a Dimensionless Harmonic Oscillator
in
Advanced Physics Homework Help
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I've tried to solve this problem (Zettili, Exercise 3.5) four times at this point. I believe my equation for the wave function at a...
Apr 11, 2024
flyusx
replied to the thread
Operators On Multivariable Wave Functions
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Yes, I am blind. Thank you.
Mar 28, 2024
flyusx
replied to the thread
Operators On Multivariable Wave Functions
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Thanks, I checked out the section/page about solid angle. But <ψ|Α|ψ> would be zero as...
Mar 28, 2024
flyusx
replied to the thread
Operators On Multivariable Wave Functions
.
A is anti-Hermitian, B is Hermitian. I'd figured that part by myself so I didn't bother to link it. Sorry. Does ##\sin(θ)## come from...
Mar 28, 2024
flyusx
replied to the thread
Operators On Multivariable Wave Functions
.
I thought $$\langleψ(x)|\hat{A}|ψ(x)\rangle$$ meant $$\int\psi^{*}\hat{A}\psi\;dx$$, and ended up figuring out that one does integrate...
Mar 28, 2024
flyusx
replied to the thread
What To Project Upon When Doing QM Measurements?
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Ah, so they're identical with the exception of a constant (the inner product of h2 and ψ).
Mar 25, 2024
flyusx
replied to the thread
What To Project Upon When Doing QM Measurements?
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So if a state ##|ψ\rangle## is measured and a value h2 is recorded, the state will be in ##|ψ'\rangle=|h2\rangle\langle h2|ψ\rangle##...
Mar 25, 2024
flyusx
replied to the thread
What To Project Upon When Doing QM Measurements?
.
From Zettili's QM textbook, I have seen the |ψ'> representation used to solve Problem 3.8 whereas Problem 3.7 doesn't use this method...
Mar 25, 2024
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