Controlling dipole-dipole frequency shifts in a lattice-based optical atomic clock

Details Controlling dipole-dipole frequency shifts in a lattice-based optical atomic clock Controlling dipole-dipole frequency shifts in a lattice-based optical atomic clock

2003-08-12

arxiv.org/abs/quant-ph/0308068v1

Physics

Quantum Physics

14 pages, 4 figures

Scientific paper

10.1103/PhysRevA.69.023810

Motivated by the ideas of using cold alkaline earth atoms trapped in an optical lattice for realization of optical atomic clocks, we investigate theoretically the perturbative effects of atom-atom interactions on a clock transition frequency. These interactions are mediated by the dipole fields associated with the optically excited atoms. We predict resonance-like features in the frequency shifts when constructive interference among atomic dipoles occur. We theoretically demonstrate that by fine-tuning the coherent dipole-dipole couplings in appropriately designed lattice geometries, the undesirable frequency shifts can be greatly suppressed.

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