Ekkehard Peik

Physikalisch-Technische Bundesanstalt
38116 Braunschweig, Germany

June 1, 2018 to December 31, 2019
“Optical atomic clocks with single trapped ions”

See Abstract and Biography

    • August 30, 2018: Lecture at the International School on Laser Physics and Photonics, Novosibirsk State University, Akademgorodok, Russia
      The lecture was part of a school in conjunction with the international conference Modern Problems in Laser Physics. Participants were about 30 graduate students and a few researchers from the university and from institutes of the Academy . There was also an occasion to visit the laboratories at the Institute of Laser Physics of the Russian Academy of Sciences (Siberian Branch) that has performed pioneering work on high resolution laser spectroscopy and maintains a broad range of research activities on optical frequency standards.
    • September 10.-14, 2018, Lecture at the International School on Optical Clocks, Gressoney la Trinité, Italy.
      This school, organized by colleagues from the Italian NMI INRIM on behalf of a project within the European Metrology Research program brought together an audience of PhD students and postdocs working on optical clocks, in the beautiful alpine setting of the Val d’Aosta.

    • November 20, 2018, Seminar at Ben Gurion University of the Negev, Beer-Sheba, Israel
      The seminar was held in the physics department of Ben Gurion University with about 50 people participating. The visit was arranged by Prof. Ron Folman and was an excellent opportunity for me to visit his Atom Chip Lab and to learn about their research activities with cold atoms, atom optics and frequency standards.
    • January 15, 2019, Colloquium at the Physics Institute of Humboldt-University, Berlin, Germany
      The optics and photonics groups of Profs. Benson and Peters at the institute on the Adlershof campus in the east of Berlin have strong activities in the field of metrology and in tests of fundamental physics with optical and atomic physics experiments. The visit provided multiple opportunities for discussion, and about 80 people attended the colloquium.
    • March 15, 2019, Seminar at CSIR-NPL, New Delhi, India
      With an additional motivation for travel to India to participate in the Regional Asia-Pacific Conference of URSI in New Delhi, I took the opportunity for an extended visit to the Time and Frequency Metrology Section of the Indian National Physical Laboratory. Some long-term cooperative links between PTB and CSIR-NPL have already existed in the development of cesium fountain clocks and Yb+ trapped ion clocks. It was a pleasure for me to talk in front of a highly interested audience of experts. My visit was kindly arranged by Subhasis Panja. He gave me the opportunity to learn about the work and the equipment of CSIR-NPL for atomic clocks, time scales and time services, and also showed me to two of Delhi’s attractions, the India gate and the Sri Bangla Sahib Gurudwara.
    • June 4, 2019, Seminar at the Jet Propulsion Laboratory, Pasadena, USA.
      I spent a most interesting day for a visit of the JPL in Pasadena, where Nan Yu of the Quantum Sciences and Technology Laboratories and Eric Burt from the Frequency and Timing Advanced Instrument Development Group hosted me and showed me their research and instrument development, including the prototypes of the Deep Space Atomic Clock that is launched this summer. Our common interests in the development of trapped ion atomic clocks made these discussions especially interesting for me.While staying in Pasadena, I took the opportunity to visit the historic Mount Wilson Observatory, where it is possible to see the 100 inch telescope that had been used by Hale, Hubble and others in some of the most important astronomic discoveries during the first half of the 20th century.
    • June 5, 2019, AMO Seminar at UCLA, Los Angeles
      My next stop on this trip of the US west coast was the physics department of UCLA where I spoke in the Seminar on atomic, molecular and optical physics. and visited the AMO groups. Joint interests of my group with the groups of Eric Hudson, Wes Campbell and Paul Hamilton include the Th-229 nuclear clock and precision tests of fundamental physics with trapped ions.
    • June 6, 2019, Seminar at TRIUMF, Vancouver, Canada
      On the invitation of the IEEE chapter in Vancouver I gave a lecture at TRIUMF in Vancouver, Canada, and visited the experimental facilities around this major proton synchrotron. Pierre Amaudruz kindly arranged my visit and introduced me to detector development for various experiments at TRIUMF and also for the antiproton spectroscopy experiment ALPHA at CERN.
    • July 5.-9., 2019, International School of Physics “Enrico Fermi”, Varenna, Italy
      After a lecture on nuclear clocks at the annual European Frequency and Time Seminar EFTS in Besancon, France, I traveled to Lake Como to give two lectures at the prestigious Enrico Fermi School of Physics that takes place in a beautiful location in an old villa directly at the shore of lake Como. This year’s school on metrology was organized by colleagues from BIPM,  NIST and INRIM. UFFC support has funded registration, room and board for several students from Frequency Control. Having the time to give two lectures allowed me to expand the topic of my DL lecture with a broader introduction of the concepts of optical clocks and with a conclusion towards the applications of the novel frequency standards in fundamental tests, like searches for violations of the Einstein equivalence principle.  A notable speaker at the school was Bill Phillips from NIST who also covered the subjects of cold atoms, atomic clocks and tests of fundamental physics. The unique atmosphere and location of the school set a beautiful frame for discussions with the participants, young scientists from all branches of metrology and from all around the world.   
    • July 16, 2019, Colloquium at the Max-Planck-Institute for Quantum Optics, Garching, Germany
      Pioneering work on laser spectroscopy and optical frequency metrology has been performed at this institute and it was a pleasure for me to visit the place where I have been working towards my PhD in the 1990ies. From the broad range of interesting activities in the institute, I visited the groups working on precision frequency measurements of hydrogen and He+, on VUV laser sources for spectroscopy, and on quantum gates with atoms and photons.