Illustration of the interaction energies between ultracold potassium-rubidium molecules (10714916694)

Illustration of the interaction energies between ultracold potassium-rubidium molecules trapped in a lattice made of intersecting laser beams. The colors indicate each molecule's interaction with the molecule located in the center of the lattice (green), for a specific magnetic-field direction (purple arrow). Blue indicates attractive interactions, and red indicates repulsive interactions. Darker colors indicate higher interaction energy.
See also www.nist.gov/pml/div689/jila-091813.cfm
Credit: Covey/JILA
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