18 February 2020 - Copenhagen image selected for Phys. Rev. A 'Kaleidoscope'
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The image you see here shows the velocity-dependent emission and absorption dynamics of a superradiant pulse from mK strontium.
It appears in the new iqClock paper "Lasing on a narrow transition in a cold thermal strontium ensemble" that was published in Physical Review A by the Copenhagen group of Stefan A. Schäffer, Mikkel Tang, Martin R. Henriksen, Asbjørn A. Jørgensen, Bjarke T. R. Christensen and Jan W. Thomsen. Physical Review A selected the image as part of their monthly Kaleidoscope. |
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24 January 2020 - iqClock at Viva Fysica
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The annual physics teacher and pupil conference 'Viva Fysica' at the University of Amsterdam was a big success! Of course, iqClock was present, both in the morning lectures and in the afternoon lab tours.
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25 October 2019 - PhD Shayne Bennetts
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Congratulations to iqClock's Shayne Bennetts (University of Amsterdam) for successfully defending his PhD thesis!
Shayne's thesis is titled '1000 times closer to a continuous atom laser: Steady-state strontium with unity phase-space density'. |
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22-23 October 2019 - Third iqClock consortium meeting
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The third iqClock consortium meeting took place in Innsbruck, hosted by Innsbruck University. Two days of interesting talks, updates and plans for the future - and all of that in a beautiful place!
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5 October 2019 - Open Day in Amsterdam
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iqClock was present during the Sciene Park Open Day at the University of Amsterdam. Around 1000 visitors of all ages came to the Open Day; many visited the iqClock lab, followed a short lecture about clocks and timekeeping, and were able to see a magneto-optical trap (one of the key components of our optical atomic clocks) in action.
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2 October 2019 - Girls' Day in Copenhagen
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The Girls' Day at the Niels Bohr Institute in Copenhagen was a big success! Here iqClock's Stefan Alaric Schäffer is explaining how lenses work to our next generation of physicists.
(Sadly, the images with participants in them were not GDPR-compliant and have therefore been removed.) |
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30 September 2019 - A coated vacuum chamber
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Optical atomic clocks require good vacuum chambers. One of the crucial aspects of these chambers is the coating. iqClock partner Acktar recently developed a coating for the vacuum chamber of one of our new ultra-precise clocks and made a nice video to present it.
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16 September 2019 - Open positions
The European Innovative Training Network MoSaiQC has 15 open PhD positions related to work on iqClock.
15-20 September 2019 - Autumn School
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Our Autumn School on Clocks, Cavities and Fundamental Physics in Toruń is in full swing. Here, students and researchers are discussing during the poster session. (For more info on the Autumn School, see the announcement below or the school's website.)
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15-20 September 2019 - Autumn School on Clocks, Cavities and Fundamental Physics
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The iqClock Quantum Flagship consortium is pleased to announce the upcoming Autumn School on “Clocks, Cavities, and Fundamental Physics”, which will take place at the Institute of Physics, Nicolaus Copernicus University in Toruń, Poland, 15-20 September 2019.
The school welcomes students and postdocs from all over the world, and will focus on experiments and concepts that lie on the border of future optical atomic clocks, fundamental physics table-top experiments, and cosmology. Topics covered by the school include
Registration for the school is open until August 15, acceptance is on a rolling basis. The fee is EUR 200 and covers coffee breaks, lunches and the social program. Convenient accommodation can be booked through the conference secretary. Many choices for dinner are available at restaurants in downtown Toruń. For more information on the program, speakers, and registration, please see http://ccfp.pl/. We look forward to welcome you at the CCFP autumn school! |
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28 August 2019 - PhD Stefan A. Schäffer
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Congratulations to Stefan Alaric Schäffer (UCPH) for successfully defending his PhD thesis! In his work Stefan has investigated two approaches to cavity-enhanced clock operation using cold Strontium atoms – one based on cavity-enhanced spectroscopy, and one based on active lasing in the bad cavity regime, a forerunner for the superradiant lasers that will be built by the iqClock consortium. Additionally Stefan has taken part in the development of the Yb-clock at NIST, Boulder.
Stefan's thesis was titled Cavity-Enhanced Optical Clocks. In the picture, besides the proud laureate, are his supervisor Jan W. Thomsen and the committee consisting of Jérôme Lodewyck (LNE-SYRTE), Christain Lisdat (PTB), and Jörg H. Müller (NBI - UCPH). |
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2 October 2019 - Girls Day in Science, Copenhagen
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iqClock will be present at the Girls Day in Science on 2 October at the Niels Bohr Institute in Copenhagen. The program (in Danish) can be found here: https://kvinderifysik.dk/girls-day-in-science/.
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5 June 2019 - Preprint: 'Superradiant Cooling, Trapping, and Lasing of Dipole-Interacting Clock Atoms'
A new iqClock-related preprint, Superradiant Cooling, Trapping, and Lasing of Dipole-Interacting Clock Atoms, was pre-published on the arXiv today. The authors are Christoph Hotter, David Plankensteiner, Laurin Ostermann and Helmut Ritsch (University of Innsbruck). The paper was submitted to Optics Express - OSA.
28 May 2019 - Preparing the autumn school
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Mark your calendars: the iqClock autumn school on clocks, cavities and fundamental physics will be organized in Torún, Poland, from 15-20 September 2019. The schedule is still being completed, but if you're interested you can already check out the web site and the poster for the school. Keep an eye on this space for more info once the program is finalized!
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2-3 May 2019 - Second iqClock Consortium Meeting
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The second iqClock Consortium Meeting was hosted by the University of Birmingham. The consortium partners discussed the latest scientific and organizational developments, made plans for the future, and enjoyed a nice boat trip through the city of Birmingham.
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26 April 2019 - PhD Chun-Chia Chen
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Congratulations to Chun-Chia Chen (UvA) for obtaining his PhD! In his thesis work, Chun-Chia made important contributions to developing the ultracold Sr source that will be used for the superradiant lasers built by the iqClock consortium.
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31 March 2019 - iqClock at DPG Spring Meeting
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iqClock was present at the DPG Spring Meeting in Regensburg, Germany. Here we see iqClock's Rodrigo González Escudero (UvA) explaining atom lasers to his colleagues.
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29 March 2019 - First iqClock preprint
The first iqClock-related preprint, Lasing on a narrow transition in a cold thermal strontium ensemble, was pre-published on the arXiv today. The authors are Stefan A. Schäffer, Mikkel Tang, Martin R. Henriksen, Asbjørn A. Jørgensen, Bjarke T. R. Christensen and Jan W. Thomsen (NBI Copenhagen). The paper was submitted to Physical Review A.
25 January 2019 - Video: iqClock - Building the most accurate clock in the world
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During the annual Viva Fysica meeting for high school teachers and pupils in Amsterdam, Shayne Bennetts (UVA) gave a popular science talk iqClock: Building the most accurate clock in the world. The talk gives a nice overview of the methods and goals of the iqClock project. It can be watched on the UvA website by clicking here.
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