Dephasing of atomic tunneling by nuclear quadrupoles.
Recent experiments revealed a most surprising magnetic-field dependence of coherent echoes in amorphous solids. We show that a novel dephasing mechanism involving nuclear quadrupole moments is the origin of the observed phenomena.
Würger
Alois
A
Université Bordeaux 1, CPMOH, 351 cours de la Libération, 33405 Talence, France.
Fleischmann
Andreas
A
Enss
Christian
C