TY - JOUR
T1 - Spin-echo-based magnetometry with spinor Bose-Einstein condensates
AU - Eto, Yujiro
AU - Ikeda, Hayato
AU - Suzuki, Hirosuke
AU - Hasegawa, Sho
AU - Tomiyama, Yasushi
AU - Sekine, Sawako
AU - Sadgrove, Mark
AU - Hirano, Takuya
PY - 2013/9/5
Y1 - 2013/9/5
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84884891141&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.88.031602
DO - 10.1103/PhysRevA.88.031602
M3 - Article
AN - SCOPUS:84884891141
SN - 1050-2947
VL - 88
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 3
M1 - 031602
ER -