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seen Apr 16 at 11:38

Nov
23
awarded  Excavator
Nov
23
revised How to construct the radial component of the momentum operator?
corrected parentheses
Nov
23
suggested suggested edit on How to construct the radial component of the momentum operator?
Nov
30
awarded  Commentator
Nov
30
comment Scalar product between Fock states
You can easily make $< new | original > = \sum c_{\ldots} < original | original >$ by substituting the definition of new creation / anihilation operators in $< new |$.
Nov
30
comment Scalar product between Fock states
Do you mean the scalar product $<original | new>$ or $<new | new>$? Introduction of some different notation for the new bosons would help, eg. $|n_1' \ldots n_k' \ldots >$.
Nov
29
comment Morse potential and chaos
1. Don't you want to write the potential as $V(x) = D_e (1-e^{-a(x-x_e)})^2$, as for example in this wiki article? The form you wrote, $V(x) = a e^{bx}$, is different, and I don't think it is the Morse potential any more. 2. Could you maybe explain the relation of this problem to chaos? Or maybe the question title should be "Equivalence of solutions of Morse potential and a particle in constant magnetc field" (or something similar)?
Nov
29
comment Question on the Gell-Mann Low equation
If you substitute $t\rightarrow \tau (1-i\epsilon) $ in your eq. (193), then the exponent is no longer a pure phase (i.e. complex number wuth modulus =1). All the terms receive a factor of type $e^{-\tau E_n}$. All these terms go to zero, as $\tau \rightarrow \infty$, but since author says $E_n > E_0$ for all $n>0$, then the first term goes to zero slower than all other terms. Thus we keep only this first term. If you understand now, then you can make it your own answer, it is ok to answer your questions.
Nov
29
revised Representing a polarization vector for light as a 'manifold of two state'
link fixed
Nov
29
suggested suggested edit on Representing a polarization vector for light as a 'manifold of two state'
Nov
29
comment Representing a polarization vector for light as a 'manifold of two state'
Maybe you could post a reference to the paper you were reading, this might help.
Nov
27
answered About Efimov States and Halo-Nuclei
Nov
27
awarded  Supporter
Nov
27
awarded  Organizer
Nov
27
revised About Efimov States and Halo-Nuclei
reference added, 2 tags added
Nov
27
suggested suggested edit on About Efimov States and Halo-Nuclei
Nov
27
awarded  Editor
Nov
27
revised Morse potential and chaos
corrected spelling, fixed one equation
Nov
27
answered Morse potential and chaos
Nov
27
suggested suggested edit on Morse potential and chaos