Nonadiabatic preparation of spin crystals with ultracold polar molecules - Lemeshko, Mikhail; Krems, Roman; Weimer, Hendrik (Physical Review Letters, 2012)
We study the growth dynamics of ordered structures of strongly interacting polar molecules in optical lattices. Using a dipole blockade of microwave excitations, we map the system onto an interacting spin-1/2 model possessing ground states with crystalline order, and describe a way to prepare these states by nonadiabatically driving the transitions between molecular rotational levels. The proposed technique bypasses the need to cross a phase transition and allows for the creation of ordered domains of considerably larger size compared to approaches relying on adiabatic preparation.
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