title: Towards a Mg Lattice Clock: Observation of the ^{1}S_{0}-^{3}P_{0} Transition and Determination of the Magic Wavelength.
abstract: We optically excite the electronic state 3s3p ^{3}P_{0} in ^{24}Mg   atoms, laser cooled and trapped in a magic-wavelength lattice. An applied magnetic field enhances the coupling of the light to the otherwise strictly forbidden transition. We determine the magic wavelength, the quadratic magnetic Zeeman shift, and the transition frequency to be 468.46(21) nm, -206.6(2.0)  MHz/T^{2}, and 655 058 646 691(101) kHz, respectively. These are compared with theoretical predictions and results from complementary experiments. We also develop a high-precision relativistic structure model for magnesium, give an improved theoretical value for the blackbody radiation shift, and discuss a clock based on bosonic magnesium.
authors.affiliation: Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany.
authors.forename: A P
authors.initials: AP
authors.lastname: Kulosa
authors.affiliation: Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany.
authors.forename: D
authors.initials: D
authors.lastname: Fim
authors.affiliation: Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany.
authors.forename: K H
authors.initials: KH
authors.lastname: Zipfel
authors.affiliation: Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Rühmann
authors.affiliation: Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Sauer
authors.affiliation: Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany.
authors.forename: N
authors.initials: N
authors.lastname: Jha
authors.affiliation: Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany.|Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
authors.forename: K
authors.initials: K
authors.lastname: Gibble
authors.affiliation: Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany.
authors.forename: W
authors.initials: W
authors.lastname: Ertmer
authors.affiliation: Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany.
authors.forename: E M
authors.initials: EM
authors.lastname: Rasel
authors.affiliation: Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA.|Joint Quantum Institute, NIST and the University of Maryland, College Park, Maryland 20899, USA.
authors.forename: M S
authors.initials: MS
authors.lastname: Safronova
authors.affiliation: Department of Physics, University of Nevada, Reno, Nevada 89557, USA.
authors.forename: U I
authors.initials: UI
authors.lastname: Safronova
authors.affiliation: Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA.|Petersburg Nuclear Physics Institute, Gatchina 188300, Russia.
authors.forename: S G
authors.initials: SG
authors.lastname: Porsev