title: Multiply charged thorium crystals for nuclear laser spectroscopy.
abstract: We have produced laser-cooled crystals of 232Th3+ in a linear rf Paul trap. This is the first time that a multiply charged ion has been laser cooled. Our work opens an avenue for excitation of the nuclear transition in a trapped, cold 229Th3+ ion. Laser excitation of nuclear states would establish a new bridge between atomic and nuclear physics, with the promise of new levels of metrological precision.
authors: School of Physics, Georgia Institute of Technology, Atlanta, GA 30332-0430, USA.
authors: C J
authors: CJ
authors: Campbell
authors: A V
authors: AV
authors: Steele
authors: L R
authors: LR
authors: Churchill
authors: M V
authors: MV
authors: Depalatis
authors: D E
authors: DE
authors: Naylor
authors: D N
authors: DN
authors: Matsukevich
authors: A
authors: A
authors: Kuzmich
authors: M S
authors: MS
authors: Chapman