Spin-echo-based magnetometry with spinor Bose-Einstein condensates

Yujiro Eto, Hayato Ikeda, Hirosuke Suzuki, Sho Hasegawa, Yasushi Tomiyama, Sawako Sekine, Mark Sadgrove, Takuya Hirano

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


We demonstrate detection of a weak alternate-current magnetic field by application of the spin-echo technique to F=2 Bose-Einstein condensates. A magnetic field sensitivity of 12 pT/√Hz is attained for an atom number of 5×103 at a spatial resolution of 100 μm2. Our observations indicate magnetic field fluctuations synchronous with the power supply line frequency. We show that this noise is greatly suppressed by application of a reverse phase magnetic field. Our technique is useful in order to create a stable magnetic field environment, which is an important requirement for atomic experiments which require a weak bias magnetic field.

Original languageEnglish
Article number031602
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number3
Publication statusPublished - 2013 Sep 5
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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