Nuclear spin interferences in bulk water at room temperature

Jules Grucker (1) , Kees van Schenk Brill (2, 3) , Edward G. Belaga (2) , Jacques Baudon (1) , Daniel Grucker (3)

1 LPL - Laboratoire de Physique des Lasers
2 IRMA - Institut de Recherche Mathématique Avancée
3 LNV - Laboratoire de Neuroimagerie in Vivo

Nuclear spin interference effects generated in a macroscopic sample of 10ml degassed water are detected in a simple NMR experiment. A !/2−"−!/2 RF double pulse sequence (Ramsey sequence) is applied to the water sample immersed in a static magnetic field B0 " 4.7T. For a homogeneity of B0 of the order of !B0/B0 = 2 . 10−8, the nuclear spin interference term is controlled with a maximum relative deviation of 9.7 %. These results are a first step to manipulation of nuclear spin coherence of water molecules.

Mots clés: spin; interference; nuclear magnetic resonance

Domaines: Physique Numérique [physics.comp-ph]

Jules Grucker, Kees van Schenk Brill, Edward G. Belaga, Jacques Baudon, Daniel Grucker. Nuclear spin interferences in bulk water at room temperature. 2007. ⟨hal-00133055⟩