A versatile ring trap for quantum gases

Mathieu de Goër de Herve; Yanliang Guo; Camilla de Rossi; Avinash Kumar; Thomas Badr; Romain Dubessy; Laurent Longchambon; Hélène Perrin

doi:10.1088/1361-6455/ac0579

arXiv · 2103.14310

A versatile ring trap for quantum gases

Mathieu de Goër de Herve·Yanliang Guo·Camilla de Rossi·Avinash Kumar·Thomas Badr·Romain Dubessy·Laurent Longchambon·Hélène Perrin

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Abstract

We report on the confinement of a Bose-Einstein condensate in an annular trap with widely tunable parameters. The trap relies on a combination of magnetic, optical and radio-frequency fields. The loading procedure is discussed. We present annular traps with radii adjusted between 20 and 150 micrometers. We demonstrate the preparation of persistent flows both with a rotating laser stirrer and with a global quadrupole deformation of the ring.Our setup is well adapted for the study of superfluid dynamics.

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Mathieu de Goër de Herve, Yanliang Guo, Camilla de Rossi, Avinash Kumar, Thomas Badr, Romain Dubessy, Laurent Longchambon, Hélène Perrin. 2021-03-26. A versatile ring trap for quantum gases. https://doi.org/10.1088/1361-6455/ac0579

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