title: Single-ion nuclear clock for metrology at the 19th decimal place.
abstract: The 7.6(5) eV nuclear magnetic-dipole transition in a single 229Th3+ ion may provide the foundation for an optical clock of superb accuracy. A virtual clock transition composed of stretched states within the 5F(5/2) electronic ground level of both nuclear ground and isomeric manifolds is proposed. It is shown to offer unprecedented systematic shift suppression, allowing for clock performance with a total fractional inaccuracy approaching 1×10(-19).
authors.affiliation: School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332-0430, USA. corey.campbell@gatech.edu
authors.forename: C J
authors.initials: CJ
authors.lastname: Campbell
authors.forename: A G
authors.initials: AG
authors.lastname: Radnaev
authors.forename: A
authors.initials: A
authors.lastname: Kuzmich
authors.forename: V A
authors.initials: VA
authors.lastname: Dzuba
authors.forename: V V
authors.initials: VV
authors.lastname: Flambaum
authors.forename: A
authors.initials: A
authors.lastname: Derevianko