Bespoke magnetic field design for a magnetically shielded cold atom interferometer.

ABSTRACT: Quantum sensors based on cold atoms are being developed which produce measurements of unprecedented accuracy. Due to shifts in atomic energy levels, quantum sensors often have stringent requirements on their internal magnetic field environment. Typically, background magnetic fields are attenuated using high permeability magnetic shielding, with the cancelling of residual and introduction of quantisation fields implemented with coils inside the shield. The high permeability shield, however, distorts all magnetic fields, including those generated inside the sensor. Here, we demonstrate a solution by designing multiple coils overlaid on a 3D-printed former to generate three uniform and three constant linear gradient magnetic fields inside the capped cylindrical magnetic shield of a cold atom

SUBMITTER: Hobson PJ 

PROVIDER: S-EPMC9217970 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature