Dipole-field contributions to geometric-phase-induced false electric-dipole-moment signals for particles in traps

Journal Article · Sun Jan 15 00:00:00 EST 2006 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.73.0· OSTI ID:20786798

Harris, P G; Pendlebury, J M ^[1]

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1. Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH (United Kingdom)

It has been shown in an earlier publication [J. Pendlebury et al. Phys. Rev. A 70, 032102 (2004)] that magnetic-field gradients applied to particles in traps can induce Larmor frequency shifts that may falsely be interpreted as electric-dipole moment signals. This study has now been extended to include nonuniform magnetic-field gradients due to the presence of a local magnetic dipole. It is found that, in the high orbit-frequency regime, .the magnitude of the shifts can be enhanced beyond the simple expectation of proportionality to the volume-averaged magnetic-field gradient <{partial_derivative}B{sub z}/{partial_derivative}z>.

• OSTI ID: 20786798
• Journal Information: Physical Review. A, Vol. 73, Issue 1; Other Information: DOI: 10.1103/PhysRevA.73.014101; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
CP INVARIANCE
ELECTRIC DIPOLE MOMENTS
MAGNETIC DIPOLES
MAGNETIC FIELDS
ORBITS
QUANTUM ELECTRODYNAMICS
TRAPS