Clock shift in high field magnetic resonance of atomic hydrogen.
作者： J. Ahokas , J. Järvinen , G. V. Shlyapnikov , S. Vasiliev
DOI: 10.1103/PHYSREVLETT.101.263003
关键词: Dipole 、 Magnetic resonance force microscopy 、 Hyperfine structure 、 Singlet state 、 Electron paramagnetic resonance 、 Ferromagnetic resonance 、 Physics 、 Electron magnetic dipole moment 、 Atomic physics 、 Spin echo
摘要: We have measured electron spin resonance line shifts due to collisions in atomic hydrogen gas compressed densities approximately 10(18) cm(-3) a strong magnetic field (4.6 T). The shift doubly polarized is negligible, contrast with mixture of two hyperfine states. This difference explained by properly including effects quantum statistics and dipolar effects. report on the first direct measurement between triplet singlet s-wave scattering lengths a(t) - a(s) = 60(10) pm, which agreement existing theories.
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