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arxiv 1908.01759 v2 pith:MKNXHW7D submitted 2019-08-05 physics.atom-ph cond-mat.quant-gasquant-ph

Microwave shielding of ultracold polar molecules with imperfectly circular polarization

classification physics.atom-ph cond-mat.quant-gasquant-ph
keywords circularmicrowavepolarizationmoleculespairspolarrbcsshielding
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We investigate the use of microwave radiation to produce a repulsive shield between pairs of ultracold polar molecules and prevent collisional losses that occur when molecular pairs reach short range. We carry out coupled-channels calculations on RbCs+RbCs and CaF+CaF collisions in microwave fields. We show that effective shielding requires predominantly circular polarization, but can still be achieved with elliptical polarization that is around 90% circular.

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