2014 Fiscal Year Final Research Report
Development of atomic magnetometry for precision EDM experiment
Project/Area Number |
24340052
|
Research Category |
Grant-in-Aid for Scientific Research (B)
|
Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
|
Research Institution | Okayama University |
Principal Investigator |
|
Co-Investigator(Renkei-kenkyūsha) |
ASAHI Koichi 東京工業大学, 大学院大学院理工学研究科, 教授 (80114354)
|
Project Period (FY) |
2012-04-01 – 2015-03-31
|
Keywords | 永久電気双極子モーメント / 高感度磁力計 / 非線形磁気光学効果 |
Outline of Final Research Achievements |
The high-sensitive magnetometer was developed for search of electric dipole moment which indicates direct evidence of time revearsal symmetry. Rubidium atoms were confined in a glass cell whose inner surface was coated with paraffin. The cell was irradiated by a single frequency laser beam and the rotation of beam polarization after passing the cell was analyzed to probe the magnetic field. The magnetic sensitivity of μG/√Hz was achieved, and the shot-noise limit of 30 pG/√Hz was evaluated. This paved the way for introducing this type of magnetometry in EDM experiments.
|
Free Research Field |
原子核物理実験
|