International timescales with optical clocks (ITOC)

Helen S. Margolis; Rachel M. Godun; Patrick Gill; L. A. M. Johnson; Setnam L. Shemar; Peter B. Whibberley; Heiner Denker; Ludger Timmen; Christian Voigt; Davide Calonico; Filippo Levi; Luca Lorini; M. Pizzocaro; Stephan Falke; Dirk Piester; Christian Lisdat; Uwe Sterr; Stefan Vogt; Stefan Weyers; Pacôme Delva; Sébastien Bize; Joseph Achkar; Jan Geršl; Thomas Lindvall; Mikko Merimaa

doi:10.1109/EFTF-IFC.2013.6702183

International timescales with optical clocks (ITOC)

Helen S. Margolis, Rachel M. Godun, Patrick Gill, L. A. M. Johnson, Setnam L. Shemar, Peter B. Whibberley, Heiner Denker, Ludger Timmen, Christian Voigt, Davide Calonico, Filippo Levi, Luca Lorini, M. Pizzocaro, Stephan Falke, Dirk Piester, Christian Lisdat, Uwe Sterr, Stefan Vogt, Stefan Weyers, Pacôme DelvaSébastien Bize, Joseph Achkar, Jan Geršl, Thomas Lindvall, Mikko Merimaa

BA6602 Electrical metrology

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

21 Citations (Scopus)

Abstract

A new collaborative European project "International timescales with optical clocks" (ITOC) aims to tackle the key challenges that must be addressed prior to a redefinition of the SI second. A coordinated programme of comparisons will be carried out between European optical clocks developed in five different laboratories, enabling their performance levels to be validated at an unprecedented level of accuracy. Supporting work will be carried out to evaluate relativistic effects that influence the comparisons, including the gravitational redshift of the clock transition frequencies. A proof-of-principle experiment will also be performed to demonstrate that optical clocks could be used to make direct measurements of the Earth's gravity potential with high temporal resolution.

Original language	English
Title of host publication	2013 Joint European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC)
Publisher	IEEE Institute of Electrical and Electronic Engineers
Pages	908-911
ISBN (Electronic)	978-1-4799-0342-9 , 978-1-4799-0341-2
DOIs	https://doi.org/10.1109/EFTF-IFC.2013.6702183
Publication status	Published - 2013
MoE publication type	A4 Article in a conference publication
Event	Joint European Frequency and Time Forum and International Frequency Control Symposium, EFTF/IFC 2013 - Prague, Czech Republic Duration: 21 Jul 2013 → 25 Jul 2013

Conference

Conference	Joint European Frequency and Time Forum and International Frequency Control Symposium, EFTF/IFC 2013
Abbreviated title	EFTF/IFC 2013
Country/Territory	Czech Republic
City	Prague
Period	21/07/13 → 25/07/13

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10.1109/EFTF-IFC.2013.6702183

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Margolis, H. S., Godun, R. M., Gill, P., Johnson, L. A. M., Shemar, S. L., Whibberley, P. B., Denker, H., Timmen, L., Voigt, C., Calonico, D., Levi, F., Lorini, L., Pizzocaro, M., Falke, S., Piester, D., Lisdat, C., Sterr, U., Vogt, S., Weyers, S., ... Merimaa, M. (2013). International timescales with optical clocks (ITOC). In 2013 Joint European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC) (pp. 908-911). IEEE Institute of Electrical and Electronic Engineers. https://doi.org/10.1109/EFTF-IFC.2013.6702183

@inproceedings{5a0317326cd14a1ba0c6e3a28ef92652,

title = "International timescales with optical clocks (ITOC)",

abstract = "A new collaborative European project {"}International timescales with optical clocks{"} (ITOC) aims to tackle the key challenges that must be addressed prior to a redefinition of the SI second. A coordinated programme of comparisons will be carried out between European optical clocks developed in five different laboratories, enabling their performance levels to be validated at an unprecedented level of accuracy. Supporting work will be carried out to evaluate relativistic effects that influence the comparisons, including the gravitational redshift of the clock transition frequencies. A proof-of-principle experiment will also be performed to demonstrate that optical clocks could be used to make direct measurements of the Earth's gravity potential with high temporal resolution.",

author = "Margolis, {Helen S.} and Godun, {Rachel M.} and Patrick Gill and Johnson, {L. A. M.} and Shemar, {Setnam L.} and Whibberley, {Peter B.} and Heiner Denker and Ludger Timmen and Christian Voigt and Davide Calonico and Filippo Levi and Luca Lorini and M. Pizzocaro and Stephan Falke and Dirk Piester and Christian Lisdat and Uwe Sterr and Stefan Vogt and Stefan Weyers and Pac{\^o}me Delva and S{\'e}bastien Bize and Joseph Achkar and Jan Ger{\v s}l and Thomas Lindvall and Mikko Merimaa",

note = "Project code: 104525 ; Joint European Frequency and Time Forum and International Frequency Control Symposium, EFTF/IFC 2013, EFTF/IFC 2013 ; Conference date: 21-07-2013 Through 25-07-2013",

year = "2013",

doi = "10.1109/EFTF-IFC.2013.6702183",

language = "English",

pages = "908--911",

booktitle = "2013 Joint European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC)",

publisher = "IEEE Institute of Electrical and Electronic Engineers",

address = "United States",

}

Margolis, HS, Godun, RM, Gill, P, Johnson, LAM, Shemar, SL, Whibberley, PB, Denker, H, Timmen, L, Voigt, C, Calonico, D, Levi, F, Lorini, L, Pizzocaro, M, Falke, S, Piester, D, Lisdat, C, Sterr, U, Vogt, S, Weyers, S, Delva, P, Bize, S, Achkar, J, Geršl, J, Lindvall, T & Merimaa, M 2013, International timescales with optical clocks (ITOC). in 2013 Joint European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC) . IEEE Institute of Electrical and Electronic Engineers, pp. 908-911, Joint European Frequency and Time Forum and International Frequency Control Symposium, EFTF/IFC 2013, Prague, Czech Republic, 21/07/13. https://doi.org/10.1109/EFTF-IFC.2013.6702183

International timescales with optical clocks (ITOC). / Margolis, Helen S.; Godun, Rachel M.; Gill, Patrick et al.
2013 Joint European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC) . IEEE Institute of Electrical and Electronic Engineers, 2013. p. 908-911.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - International timescales with optical clocks (ITOC)

AU - Margolis, Helen S.

AU - Godun, Rachel M.

AU - Gill, Patrick

AU - Johnson, L. A. M.

AU - Shemar, Setnam L.

AU - Whibberley, Peter B.

AU - Denker, Heiner

AU - Timmen, Ludger

AU - Voigt, Christian

AU - Calonico, Davide

AU - Levi, Filippo

AU - Lorini, Luca

AU - Pizzocaro, M.

AU - Falke, Stephan

AU - Piester, Dirk

AU - Lisdat, Christian

AU - Sterr, Uwe

AU - Vogt, Stefan

AU - Weyers, Stefan

AU - Delva, Pacôme

AU - Bize, Sébastien

AU - Achkar, Joseph

AU - Geršl, Jan

AU - Lindvall, Thomas

AU - Merimaa, Mikko

N1 - Project code: 104525

PY - 2013

Y1 - 2013

N2 - A new collaborative European project "International timescales with optical clocks" (ITOC) aims to tackle the key challenges that must be addressed prior to a redefinition of the SI second. A coordinated programme of comparisons will be carried out between European optical clocks developed in five different laboratories, enabling their performance levels to be validated at an unprecedented level of accuracy. Supporting work will be carried out to evaluate relativistic effects that influence the comparisons, including the gravitational redshift of the clock transition frequencies. A proof-of-principle experiment will also be performed to demonstrate that optical clocks could be used to make direct measurements of the Earth's gravity potential with high temporal resolution.

AB - A new collaborative European project "International timescales with optical clocks" (ITOC) aims to tackle the key challenges that must be addressed prior to a redefinition of the SI second. A coordinated programme of comparisons will be carried out between European optical clocks developed in five different laboratories, enabling their performance levels to be validated at an unprecedented level of accuracy. Supporting work will be carried out to evaluate relativistic effects that influence the comparisons, including the gravitational redshift of the clock transition frequencies. A proof-of-principle experiment will also be performed to demonstrate that optical clocks could be used to make direct measurements of the Earth's gravity potential with high temporal resolution.

U2 - 10.1109/EFTF-IFC.2013.6702183

DO - 10.1109/EFTF-IFC.2013.6702183

M3 - Conference article in proceedings

SP - 908

EP - 911

BT - 2013 Joint European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC)

PB - IEEE Institute of Electrical and Electronic Engineers

T2 - Joint European Frequency and Time Forum and International Frequency Control Symposium, EFTF/IFC 2013

Y2 - 21 July 2013 through 25 July 2013

ER -

International timescales with optical clocks (ITOC)

Abstract

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