Skip to main content  ∨   Page logos with links to institutions:
Max Planck SocietyMax Planck Institute for Nuclear PhysicsMax Planck Institute of Quantum OpticsPhysikalisch-Technische BundesanstaltRIKEN
Max Planck-RIKEN-PTB Center
 
Max Planck SocietyMax Planck Institute for Nuclear PhysicsMax Planck Institute of Quantum OpticsPhysikalisch-Technische BundesanstaltRIKENMax Planck-RIKEN-PTB Center
Superordinated navigation: Center  |  Contact  |  Sitemap  |  MPG  |  MPIK  |  MPQ  |  PTB  |  RIKEN
Section navigation:

Contact  Contact Persons


Tel.: +49 6221 516-851
Fax: +49 6221 516-852
Scientific Coordinator

Postal Address
Max Planck Institute for Nuclear Physics
P.O. Box 10 39 80
69029 Heidelberg
Visitor Address
Max Planck Institute for Nuclear Physics
Saupfercheckweg 1
Building: Gentner lab,
room 134
69117 Heidelberg

 

Max Planck-RIKEN-PTB Center for

Time, Constants and Fundamental Symmetries

Current News

30.01.20: Optical measurements of highly charged ions with unprecedented precision

Our center members Prof. Dr. Piet O. Schmidt (Physikalisch-Technische Bundesanstalt, PTB) and Dr. José R. Crespo López-Urrutia (Max Planck Institute for Nuclear Physics, MPIK) are coauthors of a recent article published in "Nature".
In the article, P. Micke, T. Leopold, S. A. King et al. report on pioneering optical measurements of highly charged ions with unprecedented precision. The measurements were carried out by isolating a single highly charged 40Ar13+ ion from an extremely hot plasma and bringing it practically to rest inside a cryogenic linear Paul trap together with a laser-cooled, singly charged 9Be+ ion. This technique enabled the scientists to perform coherent, optical-clock-like laser spectroscopy of an electric-dipole-forbidden optical transition in an highly charged ion (HCI) using quantum logic, at a level of precision that is eight orders of magnitude higher than the previous state of the art.
The experiment proves the feasibility of hertz-level optical spectroscopy of HCIs and opens up this large class of atomic systems to the tools of cutting-edge frequency metrology and quantum information processing. The presented techniques are not limited to the proof-of-principle HCI, 40Ar13+, but can be applied more generally to forbidden transitions in other HCIs. Furthermore, the demonstrated techniques are not limited to the optical domain and thus will enable novel high-accuracy atomic clocks based on HCIs and unrivalled tests of fundamental physics.

Please read more in the "Nature" article external Link and the press release of the MPIK external Link / PTB external Link (idw external Link).

13.11.19: First experimental constraint on the coupling strength of antimatter with dark matter candidate

In a recent article published in "Nature" our steering board member Dr. Christian Smorra, the BASE collaboration external Link and the Budker group external Link from the Helmholtz Institute Mainz report on the direct experimental search for interactions between antimatter and dark matter. The measurement was performed at the Antiproton Decelerator (AD) external Link of CERN, Geneva, utilizing a novel two-particle spectroscopy method in an advanced cryogenic multi-Penning trap system. The result reported in the present article searches for periodic changes of the antiproton spin precession frequency as signature for the axion-antiproton interaction. The measurements allowed setting considerable first constraints on the possible strength of the interaction between ultralight axion-like particles with antiprotons, which are five orders of magnitude more sensitive than astrophysical limits.

Please read more in the "Nature" article external Link and the news of the "Stored and Cooled Ions Division" external Link.

01.08.19: Andreas Mooser and Christian Smorra received IUPAP Young Scientist Prize 2019
Dr. Andreas Mooser, winner of the IUPAP Young Scientist Prize in Atomic, Molecular and Optical Physics 2019 Dr. Christian Smorra, winner of the IUPAP Young Scientist Prize in Atomic, Molecular and Optical Physics 2019

Our scientific coordinator Dr. Andreas Mooser (MPIK, division of Klaus Blaum) and steering board member Dr. Christian Smorra (RIKEN and Johannes Gutenberg University Mainz) received the "IUPAP Young Scientist Prize in Atomic, Molecular and Optical Physics 2019".
Both young scientists received the prize "for their outstanding contributions to determine the most precise comparison of the proton-to-antiproton charge-to-mass ratios and the most precise comparison of the proton and antiproton magnetic moments, constituting two different world-record tests of the fundamental charge, parity, and time reversal symmetry in these systems".
The prize was granted on July 29, 2019 on the "XXXIst International Conference on Photonic, Electronic and Atomic Collisions (ICPEAC)" at Deauville, Normandy, France. It includes a certificate, a medal and an invited presentation at ICPEAC.

We cordially congratulate Dr. Andreas Mooser and Dr. Christian Smorra on receiving this distinction of their scientific work.

Please read more in the press releases of the MPIK external Link (in German) and the IUPAP external Link.


11.04.19: Inauguration of the Max Planck-RIKEN-PTB Center

On April 8, 2019, the inauguration of the Max Planck-RIKEN-PTB Center for Time, Constants and Fundamental Symmetries, took place at RIKEN, Tokyo, Japan.
For this event, a symposium was organized with invited speakers Marianna Safronova (Univ. Delaware) and Yoshiro Takahashi (Kyoto University), and center speakers Klaus Blaum (MPG), Ekkehard Peik (PTB), and Stefan Ulmer (RIKEN). Guests like Prof. M. Stratmann (President MPG), Prof. J. Ullrich (President PTB), Prof. S. Koyasu and Prof. M. Kotani (RIKEN Executive Directors), and Dr. H. von Werthern, the ambassador of Germany in Japan, joined the event.

Please read also the news of RIKEN external Link, PTB external Link and BASE external Link.

Information of the Max Planck Society on the new Max Planck-RIKEN-PTB Center:

07.01.19: New Max Planck-RIKEN-PTB Center launched

The Max Planck Institute for Nuclear Physics external Link (MPIK), the Max Planck Institute of Quantum Optics external Link (MPQ), the Physikalisch-Technische Bundesanstalt external Link (PTB) and Japan's largest comprehensive research institution RIKEN external Link have proposed a new research center to intensify their successful collaboration in the domain of "Time, Constants and Fundamental Symmetries".

The application of this Max Planck-RIKEN-PTB Center for Time, Constants and Fundamental Symmetries has been approved in October 2018 for five years. The new initiative started on January 1, 2019, the official opening ceremony will be on April 8, 2019 at RIKEN in Tokyo, Japan. The total financial budget will be about 1.5 M€ per year, shared equally between MPG, PTB and RIKEN. The research center will be operated by three Co-Directors: Klaus Blaum (MPG), Ekkehard Peik (PTB), and Stefan Ulmer (RIKEN).

The MPIK participates with two divisions in the "Center for Time, Constants and Fundamental Symmetries", our division on “Physics with Stored and Cooled Ions” leaded by Klaus Blaum and the division of Thomas Pfeifer on "Quantum Dynamics and Control".

The new Max Planck-RIKEN-PTB Center will provide a synergetic and close collaboration, especially on the students' level, between experimental groups in atomic physics, antimatter physics, nuclear physics, quantum optics and metrology to tackle fore-front topics in precision measurements of time and constants of nature, to test fundamental symmetries and contribute to ultra-high precision searches for physics beyond the Standard Model of particle physics.
The leaders of the Max Planck-RIKEN-PTB Center expect that the intensified collaboration will lead to the development of novel experimental techniques which will outperform the state-of-the-art of contemporary experiments.

Please read more in the press releases of the MPIK external Link (idw external Link), the MPQ external Link, the PTB external Link and the CERN Courier external Link.