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nuClock

Towards a nuclear clock with Thorium-229

Total Cost €

EC-Contrib. €

Partnership

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Outcomes and
results

nuClock project word cloud

Explore the words cloud of the nuClock project. It provides you a very rough idea of what is the project "nuClock" about.

simpler resolution external progress timing communication transitions match 229 light clock groups extremely lose expertise certain demands atomic navigation metrology gps quantum detector fleet shed questions assembled holds interdisciplinary technological outperform modern supreme largely clear autonomous insufficient augmented geodesy shell generation positioning physics satellite operation transition optics vehicles perturbations nuclear time clocks specialized exotic global measuring scarcity first laser 229th suitable backbone components frequency precision hampered thorium lasers encompassing precisely fundamentally benefit precise frequencies electron respective operated extreme variety susceptible delicate inert billion joining laboratories tracking fundamental

Project "nuClock" data sheet

The following table provides information about the project.

Coordinator	TECHNISCHE UNIVERSITAET WIEN Organization address address: KARLSPLATZ 13 city: WIEN postcode: 1040 website: www.tuwien.ac.at contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.
Coordinator Country	Austria [AT]
Project website	http://www.nuclock.eu/
Total cost	3˙970˙327 €
EC max contribution	3˙970˙327 € (100%)
Programme	1. H2020-EU.1.2.1. (FET Open)
Code Call	H2020-FETOPEN-2014-2015-RIA
Funding Scheme	RIA
Starting year	2015
Duration (year-month-day)	from 2015-06-01 to 2019-05-31

Partnership

Take a look of project's partnership.

#	participants	country	role	EC contrib. [€]
1	TECHNISCHE UNIVERSITAET WIEN TECHNISCHE UNIVERSITAET WIEN Organization address address: KARLSPLATZ 13 city: WIEN postcode: 1040 website: www.tuwien.ac.at contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	AT (WIEN)	coordinator	900˙000.00
2	TOPTICA PHOTONICS AG TOPTICA PHOTONICS AG Organization address address: LOCHHAMER SCHLAG 19 city: GRAEFELFING postcode: 82166 website: www.toptica.com contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	DE (GRAEFELFING)	participant	943˙750.00
3	PHYSIKALISCH-TECHNISCHE BUNDESANSTALT PHYSIKALISCH-TECHNISCHE BUNDESANSTALT Organization address address: Bundesallee 100 city: BRAUNSCHWEIG postcode: 38116 website: www.ptb.de contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	DE (BRAUNSCHWEIG)	participant	656˙250.00
4	LUDWIG-MAXIMILIANS-UNIVERSITAET MUENCHEN LUDWIG-MAXIMILIANS-UNIVERSITAET MUENCHEN Organization address address: GESCHWISTER SCHOLL PLATZ 1 city: MUENCHEN postcode: 80539 website: www.uni-muenchen.de contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	DE (MUENCHEN)	participant	606˙250.00
5	MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV Organization address address: HOFGARTENSTRASSE 8 city: MUENCHEN postcode: 80539 website: n.a. contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	DE (MUENCHEN)	participant	327˙500.00
6	RUPRECHT-KARLS-UNIVERSITAET HEIDELBERG RUPRECHT-KARLS-UNIVERSITAET HEIDELBERG Organization address address: SEMINARSTRASSE 2 city: HEIDELBERG postcode: 69117 website: www.uni-heidelberg.de contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	DE (HEIDELBERG)	participant	288˙750.00
7	JYVASKYLAN YLIOPISTO JYVASKYLAN YLIOPISTO Organization address address: SEMINAARINKATU 15 city: JYVASKYLA postcode: 40100 website: http://www.jyu.fi contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	FI (JYVASKYLA)	participant	247˙827.00

Map

Project objective

Atomic clocks are the backbone of our modern communication and navigation technology, e.g. through the global positioning system (GPS). Improving these clocks will open up exciting new applications in geodesy, fleet tracking, autonomous vehicles, augmented reality and shed light on some of the most fundamental questions in research.

Today’s best atomic clocks lose only 1 second in 30 billion years, making them the most precise measurement devices ever built. However, such clocks are extremely delicate and susceptible to external perturbations; they can only be operated in specialized laboratories.

We propose to develop a novel type of clock, based on a unique nuclear transition in Thorium-229. This nuclear clock will be fundamentally different from existing atomic clocks, which are based on transitions in the electron shell. It will be largely inert to perturbations, simpler by design, and holds the potential to outperform existing atomic clocks in terms of precision. So far, progress towards an application of the Thorium nuclear transition has been hampered by the extreme technological challenges related to the scarcity of 229Th, insufficient detector resolution, and exotic lasers frequencies. Suitable technology is only becoming available just now. Furthermore, this research demands supreme expertise in a variety of fields, encompassing nuclear and atomic physics, quantum optics, metrology, as well as detector- and laser technology. Our interdisciplinary consortium is assembled to precisely match these requirements, joining for the first time Europe’s leading research groups in the respective fields.

The work will focus on two objectives; (i) finding clear evidence of the transition and measuring its frequency, and (ii) developing all key components required for operation of a nuclear clock. We are certain that next-generation satellite-based navigation technology and other precision timing applications will greatly benefit from more precise and robust clocks.

Deliverables

List of deliverables.
VUV cw laser system	Demonstrators, pilots, prototypes	2020-02-24 13:34:35
WP2 progress report 3	Documents, reports	2020-02-24 13:34:35
WP1 progress report 3	Documents, reports	2020-02-24 13:34:34
International conference	Websites, patent fillings, videos etc.	2020-02-24 13:34:34
Progress report thorium samples	Documents, reports	2020-02-24 13:34:34
Collective effects	Documents, reports	2020-02-24 13:34:35
Check meeting 3	Documents, reports	2020-02-24 13:34:34
Data management plan	Documents, reports	2020-02-24 13:34:32
Progress report uranium samples	Documents, reports	2020-02-24 13:34:32
Portable detection unit	Demonstrators, pilots, prototypes	2020-02-24 13:34:32
Image film	Websites, patent fillings, videos etc.	2020-02-24 13:34:32
VUV comb evaluation	Documents, reports	2020-02-24 13:34:31
WP1 progress report 1	Documents, reports	2020-02-24 13:34:32
Project webpage	Websites, patent fillings, videos etc.	2020-02-24 13:34:32
Gamma spectroscopy	Documents, reports	2020-02-24 13:34:32
WP2 progress report 2	Documents, reports	2020-02-24 13:34:33
WP2 progress report 1	Documents, reports	2020-02-24 13:34:32
WP1 progress report 2	Documents, reports	2020-02-24 13:34:33

Take a look to the deliverables list in detail: detailed list of nuClock deliverables.

Publications

List of publications.
year	authors and title	journal	last update
2019	Benedict Seiferle, Lars von der Wense, Pavlo V. Bilous, Ines Amersdorffer, Christoph Lemell, Florian Libisch, Simon Stellmer, Thorsten Schumm, Christoph E. DÃ¼llmann, Adriana PÃ¡lffy, Peter G. Thirolf Energy of the 229Th nuclear clock transition published pages: 243-246, ISSN: 0028-0836, DOI: 10.1038/s41586-019-1533-4	Nature 573/7773	2020-02-24
2019	Takahiko Masuda, Akihiro Yoshimi, Akira Fujieda, Hiroyuki Fujimoto, Hiromitsu Haba, Hideaki Hara, Takahiro Hiraki, Hiroyuki Kaino, Yoshitaka Kasamatsu, Shinji Kitao, Kenji Konashi, Yuki Miyamoto, Koichi Okai, Sho Okubo, Noboru Sasao, Makoto Seto, Thorsten Schumm, Yudai Shigekawa, Kenta Suzuki, Simon Stellmer, Kenji Tamasaku, Satoshi Uetake, Makoto Watanabe, Tsukasa Watanabe, Yuki Yasuda, Atsushi Y X-ray pumping of the 229Th nuclear clock isomer published pages: 238-242, ISSN: 0028-0836, DOI: 10.1038/s41586-019-1542-3	Nature 573/7773	2020-02-24
2019	Benedict Seiferle, Lars von der Wense, Ines Amersdorffer, Nicolas Arlt, Benjamin Kotulski, Peter G. Thirolf Towards a precise determination of the excitation energy of the Thorium nuclear isomer using a magnetic bottle spectrometer published pages: , ISSN: 0168-583X, DOI: 10.1016/j.nimb.2019.03.043	Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms	2020-02-24
2018	Robert A. MÃ¼ller, Anna V. Maiorova, Stephan Fritzsche, Andrey V. Volotka, Randolf Beerwerth, Przemyslaw Glowacki, Johannes Thielking, David-Marcel Meier, Maksim Okhapkin, Ekkehard Peik, Andrey Surzhykov Hyperfine interaction with the Th 229 nucleus and its low-lying isomeric state published pages: , ISSN: 2469-9926, DOI: 10.1103/PhysRevA.98.020503	Physical Review A 98/2	2020-02-24
2018	Peter G. Thirolf, Benedict Seiferle, Lars der Wense Improving Our Knowledge on the 229m Thorium Isomer: Toward a Test Bench for Time Variations of Fundamental Constants published pages: 1800381, ISSN: 0003-3804, DOI: 10.1002/andp.201800381	Annalen der Physik 531/5	2020-02-24
2018	Pavlo V. Bilous, Nikolay Minkov, Adriana PÃ¡lffy Electric quadrupole channel of the 7.8 eV Th 229 transition published pages: , ISSN: 2469-9985, DOI: 10.1103/physrevc.97.044320	Physical Review C 97/4	2020-02-24
2019	D.-M. Meier, J. Thielking, P. GÅ‚owacki, M. V. Okhapkin, R. A. MÃ¼ller, A. Surzhykov, E. Peik Electronic level structure of Th + in the range of the Th 229 m published pages: , ISSN: 2469-9926, DOI: 10.1103/physreva.99.052514	Physical Review A 99/5	2020-02-24
2019	Lars C. von der Wense, Benedict Seiferle, Christian Schneider, Justin Jeet, Ines Amersdorffer, Nicolas Arlt, Florian Zacherl, Raphael Haas, Dennis Renisch, Patrick Mosel, Philip Mosel, Milutin Kovacev, Uwe Morgner, Christoph E. DÃ¼llmann, Eric R. Hudson, Peter G. Thirolf The concept of laser-based conversion electron MÃ¶ssbauer spectroscopy for a precise energy determination of 229mTh published pages: , ISSN: 0304-3843, DOI: 10.1007/s10751-019-1564-0	Hyperfine Interactions 240/1	2020-02-24
2019	Peter G. Thirolf, Benedict Seiferle, Lars von der Wense The 229-thorium isomer: doorway to the road from the atomic clock to the nuclear clock published pages: , ISSN: 0953-4075, DOI: 10.1088/1361-6455/ab29b8	Journal of Physics B: Atomic, Molecular and Optical Physics	2020-02-24
2019	Lars von der Wense, Benedict Seiferle, Ines Amersdorffer, Peter G. Thirolf Preparing an Isotopically Pure ²²⁹Th Ion Beam for Studies of ^229mTh published pages: , ISSN: 1940-087X, DOI: 10.3791/58516	Journal of Visualized Experiments 147	2020-02-24
2018	L. von der Wense, B. Seiferle, P. G. Thirolf Towards a 229Th-Based Nuclear Clock published pages: 1178-1192, ISSN: 0543-1972, DOI: 10.1007/s11018-018-1337-1	Measurement Techniques 60/12	2020-02-24
2019	Nikolay Minkov, Adriana PÃ¡lffy Theoretical Predictions for the Magnetic Dipole Moment of Th 229 m published pages: , ISSN: 0031-9007, DOI: 10.1103/physrevlett.122.162502	Physical Review Letters 122/16	2020-02-24
2019	J. Seres, E. Seres, C. Serrat, E. C. Young, J. S. Speck, T. Schumm All-solid-state VUV frequency comb at 160 nm using high-harmonic generation in nonlinear femtosecond enhancement cavity published pages: 6618, ISSN: 1094-4087, DOI: 10.1364/oe.27.006618	Optics Express 27/5	2020-02-24
2018	Brenden S. Nickerson, Wen-Te Liao, Adriana PÃ¡lffy Collective effects in Th 229 -doped crystals published pages: , ISSN: 2469-9926, DOI: 10.1103/physreva.98.062520	Physical Review A 98/6	2020-02-24
2018	M.â€‰S. Safronova, S.â€‰G. Porsev, M.â€‰G. Kozlov, J. Thielking, M.â€‰V. Okhapkin, P. GÅ‚owacki, D.â€‰M. Meier, E. Peik Nuclear Charge Radii of Th 229 from Isotope and Isomer Shifts published pages: , ISSN: 0031-9007, DOI: 10.1103/physrevlett.121.213001	Physical Review Letters 121/21	2020-02-24

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