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Space magnetometry with a differential atom interferometer

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arxiv 2505.23532 v1 pith:LM3PKID5 submitted 2025-05-29 physics.atom-ph cond-mat.quant-gasquant-ph

Space magnetometry with a differential atom interferometer

Matthias Meister , Gabriel M\"uller , Patrick Boegel , Albert Roura , Annie Pichery , David B. Reinhardt , Timoth\'e Estrampes , Jannik Str\"ohle
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Enno Giese Holger Ahlers Waldemar Herr Christian Schubert \'Eric Charron Holger M\"uller Jason R. Williams Ernst M. Rasel Wolfgang P. Schleich Naceur Gaaloul Nicholas P. Bigelow
This is my paper
classification physics.atom-ph cond-mat.quant-gasquant-ph
keywords spaceatomdifferentialmeasurementsinterferometersmagnetometrynoiseprecision
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Atom interferometers deployed in space are excellent tools for high precision measurements, navigation, or Earth observation. In particular, differential interferometric setups feature common-mode noise suppression and enable reliable measurements in the presence of ambient platform noise. Here we report on orbital magnetometry campaigns performed with differential single- and double-loop interferometers in NASA's Cold Atom Lab aboard the International Space Station. By comparing measurements with atoms in magnetically sensitive and insensitive states, we have realized atomic magnetometers mapping magnetic field curvatures. Our results pave the way towards precision quantum sensing missions in space.

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Cited by 3 Pith papers

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  1. Parameter Estimation from Amplitude Collapse in Correlated Matter-Wave Interference

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    PEAC extracts parameters from amplitude collapse in correlated matter-wave interferometers, yielding lower bias than conventional methods for perfectly correlated signals.

  2. Trap-Quenched Matter-Wave Optics in Space

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    A space-based rubidium condensate was collimated by sudden trap relaxation and collective-mode excitation, reaching ~78 pK expansion energy in the imaging plane, with simulations indicating a dual-species path to 10^-...

  3. Characterisation of a strontium cold atom source using fluorescence spectroscopy and time-of-flight

    physics.atom-ph 2026-07 conditional novelty 4.0

    At push saturation 0.45 a strontium 2D-MOT source delivers about 1.5–1.7×10^8 capturable atoms/s below 30 m/s, with unidirectional-probe data scaled by a simulation factor to match counter-propagating results.