dorsal/arxiv
View SchemaPure superposition states of atoms generated by a bichromatic elliptically polarized filed
| Authors | A. V. Taichenachev, V. I. Yudin, V. L. Velichansky, A. S. Zibrov |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0503036 |
| URL | https://arxiv.org/abs/quant-ph/0503036 |
| DOI | 10.1103/PhysRevA.73.013812 |
Abstract
We find specific polarizations of components of a bichromatic field, which allow one to prepare pure superposition states of atoms, using the coherent population trapping effect. These $m$$-$$m$ states are prepared in the system of Zeeman substates of the ground-state hyperfine levels with arbitrary angular momenta $F_1$ and $F_2$. It is established that, in general case $m\ne 0$, the use of waves with elliptical polarizations ($\epsilon_1$$\perp$$\epsilon_2$ field configuration for alkali metal atoms) is necessary for the pure state preparation. We analytically show an unique advantage of the D1 line of alkali metal atoms, which consists in the possibility to generate pure $m$$-$$m$ states even in the absence of spectral resolution of the excited-state hyperfine levels, contrary to the D2 line.
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"abstract": "We find specific polarizations of components of a bichromatic field, which\nallow one to prepare pure superposition states of atoms, using the coherent\npopulation trapping effect. These $m$$-$$m$ states are prepared in the system\nof Zeeman substates of the ground-state hyperfine levels with arbitrary angular\nmomenta $F_1$ and $F_2$. It is established that, in general case $m\\ne 0$, the\nuse of waves with elliptical polarizations ($\\epsilon_1$$\\perp$$\\epsilon_2$\nfield configuration for alkali metal atoms) is necessary for the pure state\npreparation. We analytically show an unique advantage of the D1 line of alkali\nmetal atoms, which consists in the possibility to generate pure $m$$-$$m$\nstates even in the absence of spectral resolution of the excited-state\nhyperfine levels, contrary to the D2 line.",
"arxiv_id": "quant-ph/0503036",
"authors": [
"A. V. Taichenachev",
"V. I. Yudin",
"V. L. Velichansky",
"A. S. Zibrov"
],
"categories": [
"quant-ph",
"physics.atom-ph"
],
"doi": "10.1103/PhysRevA.73.013812",
"title": "Pure superposition states of atoms generated by a bichromatic elliptically polarized filed",
"url": "https://arxiv.org/abs/quant-ph/0503036"
},
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