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Compact bulk-machined electromagnets for quantum gas experiments

by K. Roux, B. Cilenti, V. Helson, H. Konishi, J. P. Brantut

Submission summary

As Contributors: Jean-Philippe Brantut · Hideki Konishi · Kevin Roux
Arxiv Link: (pdf)
Date accepted: 2019-04-11
Date submitted: 2019-03-21 01:00
Submitted by: Brantut, Jean-Philippe
Submitted to: SciPost Physics
Academic field: Physics
  • Atomic, Molecular and Optical Physics - Experiment
Approach: Experimental


We present an electromagnet combining a large number of windings in a constrained volume with efficient cooling. It is based on bulk copper where a small pitch spiral is cut out and impregnated with epoxy, forming an ensemble which is then machined at will to maximize the use of the available volume. Water cooling is achieved in parallel by direct contact between coolant and the copper windings. A pair of such coils produces magnetic fields suitable for exploiting the broad Feshbach resonance of $^6$Li at 832.2 G. It offers a compact and cost-effective solution for quantum gas experiments.

Ontology / Topics

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Quantum gases

Published as SciPost Phys. 6, 048 (2019)

Author comments upon resubmission

We are pleased to submit an updated version of the manuscript containing the revisions requested by the two referees.

List of changes

- Typos have been corrected
- Mentions of a 'Helmholtz' configuration for the coils has been removed.

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