Arturs C.

18 reputation

	18 reputation	bio	website		visits	member for	4 months
3 badges		location			seen	May 18 at 18:44

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Jan 11	revised	Alkali atom in oscilating electromagnetic field short answer added
Jan 11	awarded	Scholar
Jan 11	accepted	Alkali atom in oscilating electromagnetic field
Jan 11	comment	Alkali atom in oscilating electromagnetic field Thank you for the nice explanation! The rotating wave approximation (when applicable) indeed helps to get rid of the counter-rotating terms. Having looked into books that deal with linearly polarized almost-resonant light, I didn't expect to find counter-rotating terms as separate matrix elements, and this eventually led me to the faulty assumption that these terms should not appear in the Hamiltonian at all.
Jan 10	awarded	Editor
Jan 10	revised	Alkali atom in oscilating electromagnetic field added 220 characters in body
Jan 10	comment	Alkali atom in oscilating electromagnetic field Thank you for your input, Emilio! I am quite convinced that I am calculating 3j symbols correctly. Values of reduced matrix elements $\langle \eta^\prime\parallel d\parallel\eta\rangle$ should be real. Initial matrix elements would be real only if the corresponding electric dipole operator matrix elements were real, which I believe is not the case. The Wigner-Eckart theorem tells us that for $\Delta m=\pm 1$ transition the only nonzero component of $\hat{\mathbf{d}}$ is for either $q=+1$ or $-1$. And this corresponds to complex $x,y$ components in the Cartesian basis.
Jan 8	awarded	Student
Jan 8	asked	Alkali atom in oscilating electromagnetic field