A blue repulsive potential for dysprosium Bose-Einstein condensates

• URL: http://arxiv.org/abs/2403.18677v1
• Date: Wed, 27 Mar 2024 15:20:51 GMT
• Title: A blue repulsive potential for dysprosium Bose-Einstein condensates
• Authors: Niccolò Preti, Nicolò Antolini, Giulio Biagioni, Andrea Fioretti, Giovanni Modugno, Luca Tanzi, Carlo Gabbanini,
• Abstract summary: Short-fluid repulsive potentials for quantum gases allow to realize new systems and to study new phenomena. We employ a spectrallyfiltered diode laser system to measure both scalar and tensorial components of the polarizability of dysprosium. We demonstrate the implementation of potential strengths appropriate to manipulate Bose-Einstein condensates, with scattering-limited lifetimes exceeding one second.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Short-wavelength repulsive potentials for quantum gases allow to realize new systems and to study new phenomena. Here we report the realization of repulsive optical potentials for dysprosium atoms in the blue region of the spectrum, at wavelengths close to 400 nm. We employ a spectrallyfiltered diode laser system to measure both scalar and tensorial components of the polarizability of dysprosium, which we find in good agreement with the theoretical predictions. We demonstrate the implementation of potential strengths appropriate to manipulate Bose-Einstein condensates, with scattering-limited lifetimes exceeding one second. This type of optical potentials opens interesting directions for the study of dipolar superfluids and supersolids.

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