dorsal/arxiv
View SchemaControlling Polar Molecules in Optical Lattices
| Authors | S. Kotochigova, E. Tiesinga |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0602017 |
| URL | https://arxiv.org/abs/quant-ph/0602017 |
| DOI | 10.1103/PhysRevA.73.041405 |
Abstract
We investigate theoretically the interaction of polar molecules with optical lattices and microwave fields. We demonstrate the existence of frequency windows in the optical domain where the complex internal structure of the molecule does not influence the trapping potential of the lattice. In such frequency windows the Franck-Condon factors are so small that near-resonant interaction of vibrational levels of the molecule with the lattice fields have a negligible contribution to the polarizability and light-induced decoherences are kept to a minimum. In addition, we show that microwave fields can induce a tunable dipole-dipole interaction between ground-state rotationally symmetric (J=0) molecules. A combination of a carefully chosen lattice frequency and microwave-controlled interaction between molecules will enable trapping of polar molecules in a lattice and possibly realize molecular quantum logic gates. Our results are based on ab initio relativistic electronic structure calculations of the polar KRb and RbCs molecules combined with calculations of their rovibrational motion.
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"abstract": "We investigate theoretically the interaction of polar molecules with optical\nlattices and microwave fields. We demonstrate the existence of frequency\nwindows in the optical domain where the complex internal structure of the\nmolecule does not influence the trapping potential of the lattice. In such\nfrequency windows the Franck-Condon factors are so small that near-resonant\ninteraction of vibrational levels of the molecule with the lattice fields have\na negligible contribution to the polarizability and light-induced decoherences\nare kept to a minimum. In addition, we show that microwave fields can induce a\ntunable dipole-dipole interaction between ground-state rotationally symmetric\n(J=0) molecules. A combination of a carefully chosen lattice frequency and\nmicrowave-controlled interaction between molecules will enable trapping of\npolar molecules in a lattice and possibly realize molecular quantum logic\ngates. Our results are based on ab initio relativistic electronic structure\ncalculations of the polar KRb and RbCs molecules combined with calculations of\ntheir rovibrational motion.",
"arxiv_id": "quant-ph/0602017",
"authors": [
"S. Kotochigova",
"E. Tiesinga"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.73.041405",
"title": "Controlling Polar Molecules in Optical Lattices",
"url": "https://arxiv.org/abs/quant-ph/0602017"
},
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