3
votes
Accepted
The eigenvalues of quantum harmonic oscillator
Usually, such plots show the potential energy of the system together with the location of the eigenvalues as a horizontal line at the correct energy.
For instance, the figure below shows the shape of ...
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1
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Accepted
Confused in David Bohm's *Quantum Theory*
In discussing matrix mechanics Bohm says in chapter 16 of Quantum Theory that the $rm$ element of operator $A$, $a_{rm}$, is given by
$$a_{rm} = \int dx\ \psi^*_r(x)A\psi_m(x) \hspace{1in} (Eqn. ...
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How to derive the period of spring pendulum?
You can also do it with calculus. Let the mass be $m$, spring constant be $k$, the total displacement be $D$ (which will go away later), the displacement at any point be $x$, and the velocity at any ...
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