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Two Atomic Spins Cancel the Field and Keep the New Force
A proposed rubidium-condensate comagnetometer targets proton interactions below the range of existing direct laboratory probes.
Summary
A proposed rubidium-condensate comagnetometer targets proton interactions below the range of existing direct laboratory probes.
A single-domain rubidium-87 spinor condensate can place two co-located atomic manifolds in opposite magnetic precession while a hypothetical monopole-dipole interaction drives them in the same direction. Summing their angles suppresses ordinary field noise; the demonstrated starting system achieved 44 decibels of rejection. With an insulating source mass placed 50 micrometers away and planned upgrades, the authors project one-week sensitivity more than three orders below existing laboratory limits at a 100-micrometer range, with a projection-noise limit more than five orders lower. These are sensitivity projections grounded in prior apparatus, not a detection of a new boson.
Why it matters
A proposed rubidium-condensate comagnetometer targets proton interactions below the range of existing direct laboratory probes.
Limits and context
- With an insulating source mass placed 50 micrometers away and planned upgrades, the authors project one-week sensitivity more than three orders below existing laboratory limits at a 100-micrometer range, with a projection-noise limit more than five orders lower.
- These are sensitivity projections grounded in prior apparatus, not a detection of a new boson.
Key claims
A proposed rubidium-condensate comagnetometer targets proton interactions below the range of existing direct laboratory probes.
Qualification: With an insulating source mass placed 50 micrometers away and planned upgrades, the authors project one-week sensitivity more than three orders below existing laboratory limits at a 100-micrometer range, with a projection-noise limit more than five orders lower.
Evidence: source-2026-10-18-008
Sources
- arXiv preprint 2610.22346, original v1arXiv · primary research
Corrections
No corrections have been recorded for this story.