Abstract:
Polar molecules provide a novel platform to study the interplay of coupled pseudo-spin and motional degrees of freedom. We study the many-body quantum dynamics of fermionic polar molecules in optical lattices described by a dipolar Hubbard model. After preparing a superposition of two rotational states in each molecule, local dipolar interactions lead to many-body entanglement in the form of spin-squeezing but also reduce the many-body coherence. Motionally induced SU(2)-symmetric super-exchange interactions keep spins aligned, thus protecting collective correlations. We show that this enhances the many-body coherence and spin squeezing at intermediate times.
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As usual the talk will start at 12:30 pm but lunch will be provided at 12:00 pm.