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Results tagged with atomic-physics
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user 21270
Atomic physics is the field of physics that studies atoms as an isolated system of electrons and an atomic nucleus. It is primarily concerned with the arrangement of electrons around the nucleus and the processes by which these arrangements change. This includes ions as well as neutral atoms and, unless otherwise stated, for the purposes of this discussion it should be assumed that the term atom includes ions.
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Total Angular Momentum of a Hydrogen Atom
Griffiths in his celebrated book named 'Introduction to Quantum Mechanics' discusses about the total angular momentum of a hydrogen atom on page 187.
He writes:
If a hydrogen atom is in the stat …
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Parity and the Dipole Operator for a Two-Level System
Answer to the First Question
I will show that $\langle a \vert \textbf{r}_e \vert a \rangle = 0$, which also answers my first question.
\begin{eqnarray}
\langle a \vert \textbf{r}_e \vert a \rangle …
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Recoil of an atom absorbing a photon
I am reading the article named Manipulating Atoms with Photons by Claude Cohen-Tannoudji and Jean Dalibard. On page no. 16, the following is said.
Consider the atom in its ground state $g$ and its ce …
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Parity and the Dipole Operator for a Two-Level System
I attempt to understand the parity and dipole operator from Daniel Steck's notes: Quantum and Atom Optics (page no. 152, section 5.1.1). I have also attached a screenshot at the end of the question.
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