title: g Factor of Light Ions for an Improved Determination of the Fine-Structure Constant.
abstract: A weighted difference of the g factors of the H- and Li-like ions of the same element is theoretically studied and optimized in order to maximize the cancellation of nuclear effects between the two charge states. We show that this weighted difference and its combination for two different elements can be used to extract a value for the fine-structure constant from near-future bound-electron g factor experiments with an accuracy competitive with or better than the present literature value.
authors.affiliation: Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, D 69117 Heidelberg, Germany.|Center for Advanced Studies, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia.
authors.forename: V A
authors.initials: VA
authors.lastname: Yerokhin
authors.affiliation: Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, D 69117 Heidelberg, Germany.|Department of Physics, St. Petersburg State University, 198504 St. Petersburg, Russia.
authors.forename: E
authors.initials: E
authors.lastname: Berseneva
authors.affiliation: Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, D 69117 Heidelberg, Germany.
authors.forename: Z
authors.initials: Z
authors.lastname: Harman
authors.affiliation: Department of Physics, St. Petersburg State University, 198504 St. Petersburg, Russia.
authors.forename: I I
authors.initials: II
authors.lastname: Tupitsyn
authors.affiliation: Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, D 69117 Heidelberg, Germany.
authors.forename: C H
authors.initials: CH
authors.lastname: Keitel