Optical skyrmions were stored and retrieved in cold 87Rb vapor while preserving their skyrmion number for several microseconds under perturbations.
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Vortex photons transfer orbital angular momentum to atomic centers of mass near-perfectly in head-on collisions when impact parameter b is less than atomic coherence length σ, enabling selection-rule violations and recoil effects called superkick and selfkick.
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Storage and retrieval of optical skyrmions with topological characteristics
Optical skyrmions were stored and retrieved in cold 87Rb vapor while preserving their skyrmion number for several microseconds under perturbations.
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Interaction of twisted light with free twisted atoms
Vortex photons transfer orbital angular momentum to atomic centers of mass near-perfectly in head-on collisions when impact parameter b is less than atomic coherence length σ, enabling selection-rule violations and recoil effects called superkick and selfkick.