- #1
philip041
- 107
- 0
I'm trying to follow some working by lecturer;
Treating delK (previously found in first bit of question), show that the energy En of the usual hydrogenic state [nlm> is shifted by some expression given.
basically we start with
[tex]
\[
\frac{1}{2m_{0}c^{2}} \left\langle nlm\right|\left(\hat{H_{0}} - V\left(r\right)\right)^{2}\left|nlm\right\rangle
\]
[/tex]
and it goes to
[tex]
\[
\frac{1}{2m_{0}c^{2}} \left\langle nlm\right|\left(E_{n}+\frac{\alpha\hbar c}{r}\right)^{2}\left|nlm\right\rangle
\]
[/tex]
I don't understand what he has done top replace the H - V?
Cheers
Treating delK (previously found in first bit of question), show that the energy En of the usual hydrogenic state [nlm> is shifted by some expression given.
basically we start with
[tex]
\[
\frac{1}{2m_{0}c^{2}} \left\langle nlm\right|\left(\hat{H_{0}} - V\left(r\right)\right)^{2}\left|nlm\right\rangle
\]
[/tex]
and it goes to
[tex]
\[
\frac{1}{2m_{0}c^{2}} \left\langle nlm\right|\left(E_{n}+\frac{\alpha\hbar c}{r}\right)^{2}\left|nlm\right\rangle
\]
[/tex]
I don't understand what he has done top replace the H - V?
Cheers