Physics > Atomic Physics
[Submitted on 1 Jun 2013]
Title:A Method for Measuring the $6S_{1/2} \leftrightarrow 5D_{3/2}$ Magnetic Dipole Transition Moment in {Ba}$^{+}$
Authors:Spencer R. Williams, Anupriya Jayakumar, Matthew R. Hoffman, Boris B. Blinov, E.N. Fortson
Abstract: We propose a method for measuring the magnetic dipole (M1) transition moment of the $6S_{1/2} \big(\mathrm{m}=-1/2\big)\leftrightarrow 5D_{3/2}\big(\mathrm{m}=-1/2\big)$ transition in single trapped Ba$^{+}$ by exploiting different symmetries in the electric quadrupole (E2) and M1 couplings between the states. The technique is adapted from a previously proposed method for measuring atomic parity nonconservation in a single trapped ion [Norval Fortson, Phys. Rev. Lett. \textbf{70}, 17 (1993)]. Knowledge of M1 is crucial for any parity nonconservation measurement in Ba$^{+}$, as laser coupling through M1 can mimic the parity-violating signal. The magnetic moment for the transition has been calculated by atomic theory and found to be dominated by electron-electron correlation effects [B.K. Sahoo et. al., Phys. Rev. A \textbf{74}, 6 (2006)]. To date the value has not been verified experimentally. This proposed measurement is therefore an essential step toward a parity nonconservation experiment in the ion that will also test current many-body theory. The technique can be adapted for similar parity nonconservation experiments using other atomic ions, where the magnetic dipole moment could present similar complications.
Subjects: Atomic Physics (physics.atom-ph)
Journal reference: Phys. Rev. A 88, 012515 (2013)
DOI: 10.1103/PhysRevA.88.012515
Cite as: arXiv:1306.0067 [physics.atom-ph]
(or arXiv:1306.0067v1 [physics.atom-ph] for this version)
From: Spencer Williams Spencer Williams [view email]
[v1] Sat, 1 Jun 2013 02:52:16 UTC (697 KB)
physics.atom-ph