dorsal/arxiv
View SchemaBlackbody-radiation-assisted molecular laser cooling
| Authors | I. S. Vogelius, L. B. Madsen, M. Drewsen |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0206132 |
| URL | https://arxiv.org/abs/quant-ph/0206132 |
| DOI | 10.1103/PhysRevLett.89.173003 |
| Journal | Phys. Rev. Lett. 89, 173003 (2002) |
Abstract
The translational motion of molecular ions can be effectively cooled sympathetically to temperatures below 100 mK in ion traps through Coulomb interactions with laser-cooled atomic ions. The distribution of internal rovibrational states, however, gets in thermal equilibrium with the typically much higher temperature of the environment within tens of seconds. We consider a concept for rotational cooling of such internally hot, but translationally cold heteronuclear diatomic molecular ions. The scheme relies on a combination of optical pumping from a few specific rotational levels into a ``dark state'' with redistribution of rotational populations mediated by blackbody radiation.
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"abstract": "The translational motion of molecular ions can be effectively cooled\nsympathetically to temperatures below 100 mK in ion traps through Coulomb\ninteractions with laser-cooled atomic ions. The distribution of internal\nrovibrational states, however, gets in thermal equilibrium with the typically\nmuch higher temperature of the environment within tens of seconds. We consider\na concept for rotational cooling of such internally hot, but translationally\ncold heteronuclear diatomic molecular ions. The scheme relies on a combination\nof optical pumping from a few specific rotational levels into a ``dark state\u0027\u0027\nwith redistribution of rotational populations mediated by blackbody radiation.",
"arxiv_id": "quant-ph/0206132",
"authors": [
"I. S. Vogelius",
"L. B. Madsen",
"M. Drewsen"
],
"categories": [
"quant-ph",
"physics.atom-ph",
"physics.chem-ph"
],
"doi": "10.1103/PhysRevLett.89.173003",
"journal_ref": "Phys. Rev. Lett. 89, 173003 (2002)",
"title": "Blackbody-radiation-assisted molecular laser cooling",
"url": "https://arxiv.org/abs/quant-ph/0206132"
},
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