CQT Online Talk by Christian Miniatura
Date/Time: 28-Apr, 11:00AM
Venue: Online via zoom
Abstract:
I will present recent results we have obtained with a laser-cooled cloud of Sr87 strontium atoms coupled to laser fields through a 4-level resonant tripod scheme. Our laser configuration consists of two co-propagating beams (with opposite circular polarizations) and a third linearly-polarized orthogonal beam. It realizes an artificial gauge field acting in continuous space. By cycling the relative phases of the tripod beams, we induce non-Abelian SU(2) geometrical transformations on the 2 dark-states of the system and demonstrate their non-Abelian character. We also reveal how the synthetic gauge field imprinted on the atoms impact their internal state dynamics. This system realizes a universal geometric single-qubit gate. Our experimental scheme also features a new thermometry method based on the interferometric displacement of atoms in the tripod beams.
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