Proposal for a computable optical Clock

Journal of Physics Conference Series, vol. 2889, pp. 012027

Abstract

Abstract With the recent update of the SI system, all but one of the units are now based on defining the values of some fundamental constants. This development began in 1983 when the speed of light was assigned an exact fixed value. The advantage of this method is that it separates the definition from the realization, allowing new realizations to be introduced as technology advances without further redefinition. In addition, it allows unit realizations that are adapted to the scale of their intended use. Because of these advantages, we expect that one day also the last remaining object in the current SI system, the caesium atom, will also disappear. The purpose of this proposal is to outline possible paths for realizations of a future SI second based on the definition of the value of the Rydberg constant. Hydrogen and hydrogen–like systems would be the obvious candidates. The emphasis here is on the development of optical clock systems that circumvent difficulties associated with the short wavelength lasers otherwise required for cooling and driving the clock transition. The proposed clock systems based on atomic hydrogen and hydrogen–like He+, should be no more complex than current optical lattice clocks.

Authors 18

1. Omer Amit

   Max Planck Institute of Quantum Optics

   Affiliation as printed

   Max–Planck Institute für Quantenoptik, Garching, Germany

2. Vitaly Wirthl

   Max Planck Institute of Quantum Optics

   Affiliation as printed

   Max–Planck Institute für Quantenoptik, Garching, Germany

3. Derya Taray

   Max Planck Institute of Quantum Optics

   Affiliation as printed

   Max–Planck Institute für Quantenoptik, Garching, Germany

4. Vincent Weis

   Max Planck Institute of Quantum Optics

   Affiliation as printed

   Max–Planck Institute für Quantenoptik, Garching, Germany

5. Soumyadeep Sarkar

   Max Planck Institute of Quantum Optics

   Affiliation as printed

   Max–Planck Institute für Quantenoptik, Garching, Germany

6. Min–Cheol Kim

   Max Planck Institute of Quantum Optics

   Affiliation as printed

   Max–Planck Institute für Quantenoptik, Garching, Germany

7. Mustafa Waqar Syed

   Max Planck Institute of Quantum Optics

   Affiliation as printed

   Max–Planck Institute für Quantenoptik, Garching, Germany

8. Jorge Moreno

   Max Planck Institute of Quantum Optics

   Affiliation as printed

   Max–Planck Institute für Quantenoptik, Garching, Germany

9. Florian Egli

   Max Planck Institute of Quantum Optics

   Affiliation as printed

   Max–Planck Institute für Quantenoptik, Garching, Germany

10. Johannes Weitenberg Aachen Fraunhofer-Institut für Lasertechnik ILT

    Fraunhofer Institute for Laser Technology · Max Planck Institute of Quantum Optics

    Affiliation as printed

    Fraunhofer–Institut für Lasertechnik ILT, Aachen, Germany

    Max–Planck Institute für Quantenoptik, Garching, Germany

11. Muhammad Thariq

    Max Planck Institute of Quantum Optics

    Affiliation as printed

    Max–Planck Institute für Quantenoptik, Garching, Germany

12. Malte Bieringer

    Max Planck Institute of Quantum Optics

    Affiliation as printed

    Max–Planck Institute für Quantenoptik, Garching, Germany

13. Savely G. Karshenboim

    Max Planck Institute of Quantum Optics

    Affiliation as printed

    Max–Planck Institute für Quantenoptik, Garching, Germany

14. Randolf Pohl

    Johannes Gutenberg University Mainz

    Affiliation as printed

    Johannes Gutenberg–Universität, Mainz, Germany

15. D. C. Yost

    Colorado State University

    Affiliation as printed

    Colorado State University, Fort Collins, Colorado, USA

16. Akira Ozawa

    Max Planck Institute of Quantum Optics

    Affiliation as printed

    Max–Planck Institute für Quantenoptik, Garching, Germany

17. Theodor W. Hänsch

    Ludwig-Maximilians-Universität München · Max Planck Institute of Quantum Optics

    Affiliation as printed

    Ludwig–Maximilians–Universität, München, Germany

    Max–Planck Institute für Quantenoptik, Garching, Germany

18. Thomas Udem

    Ludwig-Maximilians-Universität München · Max Planck Institute of Quantum Optics

    Affiliation as printed

    Ludwig–Maximilians–Universität, München, Germany

    Max–Planck Institute für Quantenoptik, Garching, Germany