hokhani's latest activity
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Hhokhani replied to the thread I Antilinear Operators.Everything is ok if we have ##(LK)^{\dagger}=L^{\dagger} K##. Is this equation correct?
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Hhokhani replied to the thread I Angular Momentum Vector and Its Magnitude.The calculations give ##|L_z=0\rangle =\sqrt{\frac{3}{8}} (|L_x=2\rangle +|L_x=-2\rangle ) - \frac{1}{2} |L_x=0\rangle## and we expect...
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Hhokhani replied to the thread I Antilinear Operators.Thanks, but doing calculation considering ##A^{\dagger} = KL^{\dagger}## we have: ## |\alpha \rangle =\hat{A}^{\dagger} |\phi\rangle...
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H@hokhani I wouldn't focus too much on Eq.(26), as it seems that it's just a partiular definition the author chose to adpot in order to...
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Hhokhani replied to the thread I Antilinear Operators.Let's calculate as follows: ##|\alpha \rangle =\hat{A}^{\dagger} |\phi\rangle =K^{\dagger} L^{\dagger}=K^{\dagger} \begin{bmatrix} 0 &...
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Hhokhani reacted to PeroK's post in the thread I Angular Momentum Vector and Its Magnitude with
Like.
In general an expected value does not itself need to be one of the possible values. For example, the expected value of a roll of a... -
Hhokhani replied to the thread I Antilinear Operators.Thanks, could you please explain more how did you get this equation? I considered ##|\alpha \rangle =\hat{A}^{\dagger} |\phi \rangle...
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Hhokhani replied to the thread I Angular Momentum Vector and Its Magnitude.Right, Right, but how to realize which configuration is not preferred?
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Hhokhani replied to the thread I Angular Momentum Vector and Its Magnitude.All the configurations of ##(L_x,L_y,0) ## are as follows; 4 configurations with ##(L_x,L_y)=(\pm2, \pm2)## and ##L^2=8 \hbar^2## 4...
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HAn antilinear operator ##\hat{A}## can be considered as, ##\hat{A}=\hat{L}\hat{K}##, where ##\hat{L}## is a linear operator and...
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Hhokhani replied to the thread I Angular Momentum Vector and Its Magnitude.Even if the system be in an equal superposition of all of these 25 configurations, we have ##\langle L^2 \rangle =4 \hbar^2## which...
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Hhokhani reacted to PeterDonis's post in the thread I Angular Momentum Vector and Its Magnitude with Like.
Right, which means, to amplify on @PeroK's answer a bit, that the system cannot be in any of these configurations. It must be in a...
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Hhokhani reacted to PeroK's post in the thread I Angular Momentum Vector and Its Magnitude with Like.
Well, exactly! There is no realistic configuration that satisfies the requirements. I'm suprised this example isn't shown more often...
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HFor the quantum state ##|l,m\rangle= |2,0\rangle## the z-component of angular momentum is zero and ##|L^2|=6 \hbar^2##. According to...
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Hhokhani reacted to WernerQH's post in the thread I Energy*time uncertainty for particle decay with Like.
I think the first alternative is better, but it depends on how you define ΔE and Δt. For ## \Delta t ## it is customary to use the...