Simulation of Dipole-Dipole Interactions With Ultracold Sr in an Optical Lattice

Zhang, Shengnan; Ramchurn, Preetam; Bongs, Kai; Singh, Yeshpal

doi:10.1109/eftf/ifcs52194.2021.9604321

Cited by 1 publication

(1 citation statement)

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“…However, new advances in generating optical lattices with more arbitrary geometries [37,38], and tweezer arrays of alkaline-earth atoms or lanthanides open the door to the experimental realization of this regime in the near future [39][40][41]. For example, trapping strontium atoms in a blue-detuned magic wavelength optical lattice with a lattice spacing a = 206.4nm and using the 3 P 0 ↔ 3 D 1 transition at 2.6µm [42] results in a Sr /λ = 0.079. Alternatively, recent progress on cooling and trapping erbium in optical lattices would allow the generation of lattice spacings on the order of 250nm.…”

Section: Comparison Of Different Lattice Geometriesmentioning

confidence: 99%

Optimized geometries for cooperative photon storage in an impurity coupled to a two-dimensional atomic array

et al. 2022

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The collective modes of two-dimensional ordered atomic arrays can modify the radiative environment of embedded atomic impurities. We analyze the role of the lattice geometry on the impurity's emission linewidth by comparing the effective impurity decay rate obtained for all non-centered Bravais lattices and an additional honeycomb lattice. We demonstrate that the lattice geometry plays a crucial role in determining the effective decay rate for the impurity. In particular, we find that the minimal effective decay rate appears in lattices where the number of the impurity's nearest neighbors is maximal and the number of distinct distances among nearest neighbors is minimal. We further show that, in the choice between interstitial and substitutional placement of the impurity, the former always wins by exhibiting a lower decay rate and longer photon storage. For interstitial placements, we determine the optimal impurity position in the lattice plane, which is not necessarily found in the center of the lattice plaquette.

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