T&F Activities in NMIJ, AIST
|
|
- Stella Townsend
- 5 years ago
- Views:
Transcription
1 November 15, 2010 T&F Activities in NMIJ, AIST APMP/TCTF meeting 2010 in Thailand National Metrology Institute of Japan (NMIJ)
2 Contents 1. Structure of T&F division of NMIJ/AIST 2. UTC(NMIJ) generation system and time transfer link 3. Topics of R&D works on T&F field 3.1 NMIJ-F2 3.2 Optical lattice clock 3.3 Toward On-line, on-machine, and Realtime calibration
3 Contents 1. Structure of T&F division of NMIJ/AIST 2. UTC(NMIJ) generation system and time transfer link 3. Topics of R&D works on T&F field 3.1 NMIJ-F2 3.2 Optical lattice clock 3.3 Toward On-line, on-machine, and Realtime calibration
4 Structure of T&F division in NMIJ/AIST Head of T&F standard division: Katuo Seta (1) Time standards section Section Chief: Takeshi Ikegami, 4 researchers and one student - Development of primary frequency standards, the data from NMIJ-F1 are contributing to TAI several times a year, and second fountain (NMIJ-F2) is under development, proposal of a truncated beam atomic fountain - Development and application of cryogenic sapphire oscillators - Calibration service of phase noise (2) Optical Frequency and Wavelength standards section Section Chief: Fang-Lei Hong, 7 researchers, one post-doctoral researcher, and several students - Research and application works on optical comb, especially optical fiber comb - Research and development of optical lattice clocks - Calibration service of optical wavelength using an optical frequency system. (3) Frequency measurement systems section Section chief: Mishit Imae, 3 researchers, 3 technical staffs, and 2 students - Time keeping of UTC(NMIJ) - Time and frequency transfer, such as GPS carrier phase and TWSTFT, and optical fiber - Calibration service of time and frequency and its R&D work
5 Contents 1. Structure of T&F division of NMIJ/AIST 2. UTC(NMIJ) generation system and time transfer link 3. Topics of R&D works on T&F field 3.1 NMIJ-F2 3.2 Optical lattice clock 3.3 Toward On-line, on-machine, and Realtime calibration
6 UTC(NMIJ) generation system and time transfer link UTC(NMIJ) is generated by reference signal form one hydrogen maser steered by an AOG. Clocks at NMIJ - 4 hydrogen masers 2 RH401A made by Anritsu 1 SD1T01A made by Anritsu 1 CH1-75A made by KVARZ - 6 Cs clocks 5070A with high performance beam tube but 3 of them are waiting for beam tube replacement Time Transfer Link - UTC PPP (GPS carrier phase) using Z12-T: main time transfer tool - TWSTFT : backup tool
7 Cs clocks and H-masers Temperature controlled chambers for 5071A CH1-75A Temperature controlled chamber for SD1T01A Hydrogen masers (RH401A) Cs atomic clocks and new hydrogen masers (RH401A, CH1-75A and SD1T01A) are placed in temperature controlled chambers. The temperature variation of inside of the chambers is better than +/-0.2 deg. C. CH1-75A is the reference oscillator of UTC(NMIJ)
8 Measurement system for UTC(NMIJ)
9 UTC - UTC(k) [ns] UTC UTC(NMIJ) in UTC-UTC(AUS: 豪州 ) UTC-UTC(KRISS: 韓国 ) UTC-UTC(NIST: アメリカ ) UTC-UTC(NPL: イギリス ) UTC-UTC(NTSC: 中国 ) UTC-UTC(OP: フランス ) UTC-UTC(PTB: ドイツ ) UTC-UTC(TL: 台湾 ) UTC-UTC(USNO: アメリカ ) UTC-UTC(NICT: 日本 ) UTC-UTC(NMIJ: 日本 ) UTC-GPS time /01/ /04/ /07/ /10/ /12/31
10 Development of equipment for improvement of UTC(NMIJ) Micro frequency adjuster under development signal puerility: same as input signal frequency resolution: (more precise resolution is possible) Multi-channel DMTD Numbers of channel: 8 ch. resolution: < 1 s
11 Contents 1. Structure of T&F division of NMIJ/AIST 2. UTC(NMIJ) generation system and time transfer link 3. Topics of R&D works on T&F field 3.1 NMIJ-F2 3.2 Optical lattice clock 3.3 Toward On-line, on-machine, and Realtime calibration
12 Atomic fountains in NMIJ 3 fountains in NMIJ NMIJ-F1: Long-term operation with uncertainty of Frequent reports to BIPM (20 reports to BIPM in recent 4 years). Reference for NMIJ-F2 and optical lattice clocks on demand. NMIJ-F2: Under construction. Target uncertainty < Higher contribution ratio to TAI. Precise reference for optical lattice clocks. Truncated beam fountain: New proposal (Phys.Rev.A 82 (2010) ). Target uncertainty In the step for proof of the principle. 12
13 NMIJ-F2 Microwave cavities which are part of the vacuum vessel (S. R. Jefferts et al., Proc IEEE Int. Freq. Control Symp. p. 6) Decrease of the uncertainty caused by microwave power dependence (1,1,1) configuration for cooling laser beams Laser power :100 mw per beam Increase of the number of cold atoms Higher frequency stability Due to the difficulty of the optical alignment in (1,1,1) configuration (the observed temperature of optical molassess was 120 μk), we modified the configuration to (0,0,1). NMIJ-F2 (under construction) 13
14 Contents 1. Structure of T&F division of NMIJ/AIST 2. UTC(NMIJ) generation system and time transfer link 3. Topics of R&D works on T&F field 3.1 NMIJ-F2 3.2 Optical lattice clock 3.3 Toward On-line, on-machine, and Realtime calibration
15 Excitation rate Fluorescence (a.u.) Development of Yb optical lattice clock Effect Blackbody radiation shift Correction (Hz) Uncertainty (Hz) Gravitational shift nd order Zeeman shift Scalar light shift 0 14 Clock laser light shift < 0.01 Clock laser scan 0 23 UTC (NMIJ) 0 5 Total S 0 (F = 1/2)- 3 P 0 (F = 1/2) transition in 171 Yb f = (28) Hz (Fractional uncertainty ) T. Kohno et al., Appl. Phys. Express vol. 2, , June CIPM Recommended (June, 2009) Improvements: Atom number normalization B field control onlyπcomponents Spin polarization by optical pumping stabilization for lattice laser Locking the clock laser frequency Number of unexcited atoms AOM Frequency Normalized (Hz) spectrum of the clock transition AOM Frequency (Hz) Improve S/N using atom number normalization
16 Development of Sr optical lattice clock Build up 87 Sr/ 171 Yb optical lattice clocks in the new chamber. 1) Contribution to the Sr lattice clock community; 2) As a second optical clock to be used for the evaluation of the Yb lattice clock; 3) Measurement of the Sr/Yb frequency ratio with an uncertainty beyond the Cs limit; 4) Contribution to the experimental demonstration of alpha variation. Sr lattice clock vacuum chamber 1 P 1 Sr Term Scheme B field (35G/cm) on ~ st Cooling Transition 461nm 3 P 0 3 P 1 Clock Transition 698nm 3 P 2 2 nd Cooling Transition 689nm 1 S 0 1 st Stage: Blue MOT (mk) Sr MOT
17 Contents 1. Structure of T&F division of NMIJ/AIST 2. UTC(NMIJ) generation system and time transfer link 3. Topics of R&D works on T&F field 3.1 NMIJ-F2 3.2 Optical lattice clock 3.3 Toward On-line, on-machine, and Realtime calibration
18 Development of user terminals for remote time and frequency calibration GCET Size mm Sensitivity -135 dbm Price about 1 MJPY (Rb type) NMIJ-DO using NMIJ s Web site Terminal size < mm Sensitivity <-160 dbm Wire-less data communication Experimental model of small size terminal Proto-type model of small size terminal PCB size mm case size mm Target model
19 Proto-type model of user terminal under development Printed circuit board size 150 x 85 mm Case size 190 x 100 x 40 mm
20 On-site, On-machine, and Real-time calibration Automatic calibration for many measurement equipment in the factory Time calibration in traffic system Real time calibration of measurement equipment in outdoors
21 Thank you for your attention!
Status Report on Time and Frequency Activities at NMIJ, AIST
November 26, 2012 APMP TCTF meeting Status Report on Time and Frequency Activities at NMIJ, AIST Takeshi Ikegami Time and Frequency Division, National Metrology Institute of Japan, AIST Director Deputy-Directors
More informationOverview of Frequency Metrology at NMIJ
Overview of Frequency Metrology at NMIJ Tomonari SUZUYAMA National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST) APMP2018 TCTF meeting RESORTS
More informationOverview of Frequency Metrology at NMIJ
Overview of Frequency Metrology at NMIJ Tomonari SUZUYAMA (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST) APMP TCTF 2015 Beijing, CHINA 2 nd - 3 rd November 2015 Outline
More informationOverview of Frequency Metrology at NMIJ
Overview of Frequency Metrology at NMIJ Kazumoto Hosaka Time and Frequency Division (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST) APMP TCTF 2014 Daejeon, KOREA 20 th -
More informationCESIUM ATOMIC FOUNTAIN CLOCKS AT NMIJ
CESIUM ATOMIC FOUNTAIN CLOCKS AT NMIJ A. Takamizawa 1, S. Yanagimachi 1, Y. Shirakawa 2, K. Watabe 1, K. Hagimoto 1, and T. Ikegami 1 1 National Metrology Institute of Japan (NMIJ), AIST 2 Tokyo University
More informationOptical Lattice Clock with Neutral Mercury
Optical Lattice Clock with Neutral Mercury R. Tyumenev, Z. Xu, J.J. McFerran, Y. Le Coq and S. Bize SYRTE, Observatoire de Paris 61 avenue de l Observatoire, 75014 Paris, France rinat.tyumenev@obspm.fr
More informationStationary 87 Sr optical lattice clock at PTB ( Accuracy, Instability, and Applications)
Stationary 87 Sr optical lattice clock at PTB ( Accuracy, Instability, and Applications) Ali Al-Masoudi, Sören Dörscher, Roman Schwarz, Sebastian Häfner, Uwe Sterr, and Christian Lisdat Outline Introduction
More informationDevelopment of a compact Yb optical lattice clock
Development of a compact Yb optical lattice clock A. A. Görlitz, C. Abou-Jaoudeh, C. Bruni, B. I. Ernsting, A. Nevsky, S. Schiller C. ESA Workshop on Optical Atomic Clocks D. Frascati, 14 th 16 th of October
More informationLocal Ensemble and Other Reference
Clock Steering Model According to Local Ensemble and Other Reference Time Scale Calvin S.Y. Lin National Standard Time and Frequency Lab., Taiwan 1 What and Why Outline The character of commercial atomic
More informationSearching for variations of fundamental constants using the atomic clocks ensemble at LNE-SYRTE
Systèmes de référence Temps-Espace Searching for variations of fundamental constants using the atomic clocks ensemble at LNE-SYRTE Luigi De Sarlo, M Favier, R Tyumenev, R Le Targat, J Lodewyck, P Wolf,
More informationCESIUM ATOMIC FOUNTAIN CLOCKS AT NMIJ
CESIUM ATOMIC FOUNTAIN CLOCKS AT NMIJ A. Takamizawa 1, S. Yanagimachi 1, Y. Shirakawa 2, K. Watabe 1, K. Hagimoto 1, and T. Ikegami 1 1 National Metrology Institute of Japan (NMIJ), AIST 2 Tokyo University
More informationStatus Report of Time and Frequency Activities at NPL- India
Status Report of Time and Frequency Activities at NPL- India (TCTF 2017) Team: V. N. Ojha, Ashish Agarwal, P. Arora, S. Panja, P. Thorat, T. Bharadwaj, S. De, S. Yadav, P. Kandpal, M. P. Olaniya and D
More informationThe Yb lattice clock (and others!) at NIST for space-based applications
The Yb lattice clock (and others!) at NIST for space-based applications Andrew Ludlow, Jeff Sherman, Nathan Hinkley, Nate Phillips, Kyle Beloy, Nathan Lemke, and Chris Oates National Institute of Standards
More informationOptical Lattice Clock with Spin-1/2 Ytterbium Atoms. Nathan D. Lemke
Optical Lattice Clock with Spin-1/2 Ytterbium Atoms Nathan D. Lemke number of seconds to gain/lose one second Clocks, past & present 10 18 10 15 one second per billion years one second per million years
More informationHigh Accuracy Strontium Ion Optical Clock
High Accuracy Strontium Ion Optical Clock Helen Margolis, Geoff Barwood, Hugh Klein, Guilong Huang, Stephen Lea, Krzysztof Szymaniec and Patrick Gill T&F Club 15 th April 2005 Outline Optical frequency
More informationRECOMMENDATION 1 (CI-2002): Revision of the practical realization of the definition of the metre
194 91st Meeting of the CIPM RECOMMENDATION 1 (CI-2002): Revision of the practical realization of the definition of the metre The International Committee for Weights and Measures, recalling that in 1983
More informationReport from TCTF/TCL JWG on Optical Frequency Metrology
Report from TCTF/TCL JWG on Optical Frequency Metrology Masami Yasuda 1 and Tetsuya Ido 2 1 Time Standards Group, National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial
More informationTiming Applications and User Equipment R. Michael Garvey. Time and Frequency Services with Galileo Workshop. 5-6 December 2005
Timing Applications and User Equipment R. Michael Garvey Time and Frequency Services with Galileo Workshop 5-6 December 2005 Outline Atomic Clock Technologies Atomic Clock Vendors Rubidium Gas Cell Cesium
More informationLocal time scale at PTB UTC(PTB) Ali Al-masoudi, Stephan Falke, Sebastian Häfner, Stefan Vogt, Christian Lisdat
Local time scale at PTB UTC(PTB) Ali Al-masoudi, Stephan Falke, Sebastian Häfner, Stefan Vogt, Christian Lisdat Outline Time scales History of atomic clock at PTB Local time scale UTC(PTB) Time transfer
More informationComparison with an uncertainty of between two primary frequency standards
Comparison with an uncertainty of 2 10-16 between two primary frequency standards Cipriana Mandache, C. Vian, P. Rosenbusch, H. Marion, Ph. Laurent, G. Santarelli, S. Bize and A. Clairon LNE-SYRTE, Observatoire
More informationPrimary Frequency Standards at NIST. S.R. Jefferts NIST Time and Frequency Division
Primary Frequency Standards at NIST S.R. Jefferts NIST Time and Frequency Division Outline Atomic Clocks - general Primary Frequency Standard Beam Standards Laser-Cooled Primary Standards Systematic Frequency
More informationIntroduction to reference time scales. Gérard Petit Bureau International des Poids et Mesures Sèvres Cedex, France
Introduction to reference time scales Gérard Petit Bureau International des Poids et Mesures 92312 Sèvres Cedex, France gpetit@bipm.org 1 Résumé Timescales: definitions and realizations BIPM atomic time
More informationStatus of the ACES/PHARAO mission
XLII nd Rencontres de Moriond,, March 2007 «Gravitational Waves and Experimental Gravity» Status of the ACES/PHARAO mission Noël DIMARCQ, SYRTE, Paris Observatory What is ACES : payload, science objectives,
More informationNational Physical Laboratory, UK
Patrick Gill Geoff Barwood, Hugh Klein, Kazu Hosaka, Guilong Huang, Stephen Lea, Helen Margolis, Krzysztof Szymaniec, Stephen Webster, Adrian Stannard & Barney Walton National Physical Laboratory, UK Advances
More informationAbsolute frequency measurement at level based on the international atomic time
Journal of Physics: Conference Series PAPER OPEN ACCESS Absolute frequency measurement at 10-16 level based on the international atomic time To cite this article: H Hachisu et al 2016 J. Phys.: Conf. Ser.
More informationTime and Frequency metrology: e-infrastractures for Science and Society
Time and Frequency metrology: e-infrastractures for Science and Society Davide Calonico Optics Division Istituto Nazionale Di Ricerca Metrologica d.calonico@inrim.it Time and Frequency Metrology: who cares?
More informationATOMIC CLOCK ENSEMBLE IN SPACE Mission status
ATOMIC CLOCK ENSEMBLE IN SPACE Mission status Luigi Cacciapuoti on behalf of the ACES team 30/03/2017 Rencontres de Moriond 2017 - Gravitation, La Thuile ACES Luigi Cacciapuoti 30/03/2017 Slide 2 The Columbus
More informationTIME & FREQUENCY. Overview from artefact to current definition & Realisation UTC. Frank Coutereel.
TIME & FREQUENCY Overview from artefact to current definition & Realisation UTC Frank Coutereel Legal Time in Belgium Past: based on GMT or UT (observations in sky) Today: based on UTC (working atomic
More informationAtom-based Frequency Metrology: Real World Applications
Atom-based Frequency Metrology: Real World Applications Anne Curtis National Physical Laboratory Teddington, UK Outline Introduction to atom-based frequency metrology Practical Uses - Tests of fundamental
More informationTrial for upgrading of Japan Standard Time
2015. 10. 31 ATF2015 Trial for upgrading of Japan Standard Time Y. Hanado, F. Nakagawa and K. Imamura National Institute of Information and Communications Technology (NICT), Japan Contents Introduction
More informationClock tests of space-time variation of fundamental constants
1 Systèmes de Référence Temps-Espace Clock tests of space-time variation of fundamental constants J. Guéna, S. Bize, M. Abgrall, L. De Sarlo, Ph. Laurent, Y. Le Coq, R. Le Targat, J. Lodewyck, P. Rosenbusch,
More informationOptical clocks and fibre links. Je ro me Lodewyck
Optical clocks and fibre links Je ro me Lodewyck J. Lodewyck Optical clocks and fibre links GRAM, Juin 2016 1/34 Content 1 Atomic clocks 2 Optical lattice clocks 3 Clock comparisons 4 Comparison of optical
More informationTHE SPACE OPTICAL CLOCKS PROJECT
THE SPACE OPTICAL CLOCKS PROJECT S. Schiller (1), G. M. Tino (2), P. Lemonde (3), U. Sterr (4), A. Görlitz (1), N. Poli (2), A. Nevsky (1), C. Salomon (5) and the SOC team (1,2,3,4) (1) Heinrich-Heine-Universität
More informationTransportable optical clocks: Towards gravimetry based on the gravitational redshift
Transportable optical clocks: Towards gravimetry based on the gravitational redshift A.A. Görlitz, P. Lemonde, C. Salomon, B.S. Schiller, U. Sterr and G. Tino C.Towards a Roadmap for Future Satellite Gravity
More informationJournées Systèmes de Référence Spatio-Temporels 2011 September 19 th 2011 Vienna, Austria
Highly precise clocks to test fundamental physics M. Abgrall, S. Bize, A. Clairon, J. Guéna, M. Gurov, P. Laurent, Y. Le Coq, P. Lemonde, J. Lodewyck, L. Lorini, S. Mejri, J. Millo, J.J. McFerran, P. Rosenbusch,
More informationAn Ensemble of Atomic Fountains
An Ensemble of Atomic Fountains Steven Peil, Scott Crane, James Hanssen, Thomas B. Swanson and Christopher R. Ekstrom Clock Development Division United States Naval Observatory Washington, DC 39 Abstract
More informationAtomic clocks. Clocks
Atomic clocks Clocks 1 Ingredients for a clock 1. Need a system with periodic behavior: it cycles occur at constant frequency 2. Count the cycles to produce time interval 3. Agree on the origin of time
More informationMicrowave clocks and fountains
Microwave clocks and fountains Filippo Levi - INRIM "METROLOGY AND PHYSICAL CONSTANTS" Varenna 24 July 2012 Lecture outline Microwave clocks Physical principle Various type of clocks Cell clocks Cs beam
More informationF.G. Major. The Quantum Beat. The Physical Principles of Atomic Clocks. With 230 Illustrations. Springer
F.G. Major The Quantum Beat The Physical Principles of Atomic Clocks With 230 Illustrations Springer Contents Preface Chapter 1. Celestial and Mechanical Clocks 1 1.1 Cyclic Events in Nature 1 1.2 The
More informationMicrowave and optical spectroscopy in r.f. traps Application to atomic clocks
Microwave and optical spectroscopy in r.f. traps Application to atomic clocks Microwave spectroscopy for hyperfine structure t measurements Energy of a hyperfine state Hyperfine coupling constants: A:
More informationA NEW REALIZATION OF TERRESTRIAL TIME
A NEW REALIZATION OF TERRESTRIAL TIME G. Petit BIPM, Pavillon de Breteuil, 92312 Sèvres Cedex, France E-mail: gpetit@bipm.org Abstract Terrestrial Time TT is a time coordinate in a geocentric reference
More informationarxiv:physics/ v1 [physics.atom-ph] 7 Nov 2006
87 Sr lattice clock with inaccuracy below 5 Martin M. Boyd, Andrew D. Ludlow, Sebastian Blatt, Seth M. Foreman, Tetsuya Ido, Tanya Zelevinsky, and Jun Ye JILA, National Institute of Standards and Technology
More informationLaser Cooling of Thulium Atoms
Laser Cooling of Thulium Atoms N. Kolachevsky P.N. Lebedev Physical Institute Moscow Institute of Physics and Technology Russian Quantum Center D. Sukachev E. Kalganova G.Vishnyakova A. Sokolov A. Akimov
More informationAtomic-Photonic Integration (A-PhI) A-Φ Proposers Day
Atomic-Photonic Integration (A-PhI) A-Φ Proposers Day Dr. John Burke Microsystems Technology Office (MTO) 1 August 2018 1 What is A-PhI? Atomic physics allows for accurate and sensitive measurements. Supporting
More informationExperimental Atomic Physics Research in the Budker Group
Experimental Atomic Physics Research in the Budker Group Tests of fundamental symmetries using atomic physics: Parity Time-reversal invariance Permutation Postulate/Spin-Statistics Connection Temporal
More informationQuantum Memory with Atomic Ensembles
Lecture Note 5 Quantum Memory with Atomic Ensembles 04.06.2008 Difficulties in Long-distance Quantum Communication Problems leads Solutions Absorption (exponentially) Decoherence Photon loss Degrading
More informationWhen should we change the definition of the second?
When should we change the definition of the second? Patrick Gill The new SI: units of measurement based on fundamental constants Discussion meeting, The Royal Society, London, 24-25 January 2011 Outline
More informationSR OPTICAL CLOCK WITH HIGH STABILITY AND ACCURACY *
SR OPTICAL CLOCK WITH HIGH STABILITY AND ACCURACY * A. LUDLOW, S. BLATT, M. BOYD, G. CAMPBELL, S. FOREMAN, M. MARTIN, M. H. G. DE MIRANDA, T. ZELEVINSKY, AND J. YE JILA, National Institute of Standards
More informationA NEW REALIZATION OF TERRESTRIAL TIME
CCTF/04-17 A NEW REALIZATION OF TERRESTRIAL TIME G. Petit BIPM, Pavillon de Breteuil, 92312 Sèvres Cedex France- e-mail: gpetit@bipm.org ABSTRACT Terrestrial Time TT is a time coordinate in a geocentric
More informationUncertainty evaluation of the caesium fountain clock PTB-CSF2
Uncertainty evaluation of the caesium fountain clock PTB-CSF2 V. Gerginov, N. Nemitz, S. Weyers, R. Schröder, D. Griebsch and R. Wynands Physikalisch-Technische Bundesanstalt (PTB) Bundesallee 100, 38116
More informationTitelmasterformat durch About atomic (optical) clocks Klicken bearbeiten
Titelmasterformat durch About atomic (optical) clocks Klicken bearbeiten Christian Lisdat Goslar 12.02.2013 Gesetz über die Einheiten im Messwesen und die Zeitbestimmung Why clocks? 6 Physikalisch-Technische
More informationATOMIC CLOCK ENSEMBLE IN SPACE
ATOMIC CLOCK ENSEMBLE IN SPACE L. Cacciapuoti a, P. Laurent b, C. Salomon c a European Space Agency, Keplerlaan 1, 2200 AG Noordwijk ZH - The Netherlands Luigi.Cacciapuoti@esa.int b SYRTE, CNRS UMR 8630,
More informationTime and Frequency Activities at the JHU Applied Physics Laboratory
Time and Frequency Activities at the JHU Applied Physics Laboratory Mihran Miranian, Gregory L. Weaver, Jeffrey F. Garstecki, and Richard A. Dragonette Johns Hopkins University Applied Physics Laboratory,
More informationAtomic Clocks. Ekkehard Peik. Physikalisch Technische Bundesanstalt Time and Frequency Department Braunschweig, Germany
CAMAM Spring School, 16-21 March 2015, Carthage, Tunisia Atomic Clocks Ekkehard Peik Ekkehard.Peik@ptb.de Physikalisch Technische Bundesanstalt Time and Frequency Department Braunschweig, Germany Clock
More informationSTUDIES OF NPL S CLOCK ENSEMBLE ALGORITHM
43 rd Annual Precise Time and Time Interval (PTTI) Systems and Applications Meeting STUDIES OF NPL S CLOCK ENSEMBLE ALGORITHM Setnam L. Shemar, John A. Davis, and Peter B. Whibberley National Physical
More informationFundamentals: Frequency & Time Generation
Fundamentals: Frequency & Time Generation Dominik Schneuwly Oscilloquartz SA slide 1 v.1.0 24/10/12 SCDO Content 1. Fundamentals 2. Frequency Generation Atomic Cesium Clock (Cs) Rubidium Oscillator (Rb)
More informationHigh stability laser source for cold atoms applications
High stability laser source for cold atoms applications Cold atoms research, which historically started as part of the atomic physics field, has grown into a wide, highly interdisciplinary research effort.
More informationThe ACES Mission. Fundamental Physics Tests with Cold Atom Clocks in Space. L. Cacciapuoti European Space Agency
The ACES Mission Fundamental Physics Tests with Cold Atom Clocks in Space L. Cacciapuoti European Space Agency La Thuile, 20-27 March 2011 Gravitational Waves and Experimental Gravity 1 ACES Mission Concept
More informationOptical clocks as secondary frequency standards and re-definition of the second
Optical clocks as secondary frequency standards and re-definition of the second Gérard Petit BIPM Time Department ISSI Workshop Spacetime metrology, clocks and relativistic geodesy 19-23 March 2018 ISSI
More informationTowards a redefinition of the SI second by optical clocks: Achievements and challenges
Towards a redefinition of the SI second by optical clocks: Achievements and challenges Status of Optical Atomic Clocks Single Ion Clocks (Yb + Octupole Transition Clock) Neutral Atom Clocks (Sr Lattice
More informationUPDATE ON TIME AND FREQUENCY ACTIVITIES AT PTB
33rdAnnual Precise Time and Time Interval (PZTZ) Meeting UPDATE ON TIME AND FREQUENCY ACTIVITIES AT PTB Peter Hetzel and Andreas Bauch Physikalisch-TechnischeBundesanstalt,Bundesallee 1, D-38116 Braunschweig,
More information3-3 A Strontium Optical Lattice Clock
3-3 A Strontium Optical Lattice Clock YAMAGUCHI Atsushi, SHIGA Nobuyasu, NAGANO Shigeo, ISHIJIMA Hiroshi, KOYAMA Yasuhiro, HOSOKAWA Mizuhiko, and IDO Tetsuya Atomic frequency standards project started
More informationDevelopement and operation of an electro-optical gravitational waves detector simulator as part of the space mission elisa/ngo
gravitational space mission PhD student : Pierre Gruning Thesis director : Hubert Halloin Contents gravitational Contents gravitational Contents gravitational Contents gravitational Plan gravitational
More informationDr. Jean Lautier-Gaud October, 14 th 2016
New generation of operational atomic clock: what perspectives for radio-astronomy & VLBI? Dr. Jean Lautier-Gaud October, 14 th 2016 Courtesy of Noel Dimarcq, SYRTE Content 1. Why is Muquans here? 2. What
More informationTowards compact transportable atom-interferometric inertial sensors
Towards compact transportable atom-interferometric inertial sensors G. Stern (SYRTE/LCFIO) Increasing the interrogation time T is often the limiting parameter for the sensitivity. Different solutions:
More informationBNM-SYRTE. Systèmes de Référence Temps-Espace. Me Félicitas Arias Pierre Uhrich Franck Pereira Do Santos. Gérard Petit David Valat Harold Marion
BNMSYRTE Systèmes de Référence TempsEspace Contributions of BNMSYRTE : Team implied in Frequency measurements Contributions of BIPM : André Clairon Team implied in Time measurements Emeric De Clercq Joseph
More informationNew generation of a mobile primary frequency standard based on cold atoms
Journal of Physics: Conference Series OPEN ACCESS New generation of a mobile primary frequency standard based on cold atoms To cite this article: S T Müller et al 015 J. Phys.: Conf. Ser. 575 01030 Related
More informationYtterbium quantum gases in Florence
Ytterbium quantum gases in Florence Leonardo Fallani University of Florence & LENS Credits Marco Mancini Giacomo Cappellini Guido Pagano Florian Schäfer Jacopo Catani Leonardo Fallani Massimo Inguscio
More informationspectroscopy of cold molecular ions
Workshop on an Optical Clock Mission in ESA s Cosmic Vision Program Düsseldorf 8. - 9. 3. 2007 High-resolution spectroscopy of cold molecular ions B. Roth, J. Koelemeij, I. Ernsting, A. Wicht, S. Schiller
More informationStudy on a thermal diffusivity standard for the laser flash method measurements 1
Study on a thermal diffusivity standard for the laser flash method measurements 1 M. Akoshima 2,3 and T. Baba 2 1 Paper presented at the Seventeenth European conference on Thermophysical Properties, September
More informationResearch Article The New Generation System of Japan Standard Time at NICT
Navigation and Observation Volume 2008, Article ID 841672, 7 pages doi:10.1155/2008/841672 Research Article The New Generation System of Japan Standard Time at NICT Yuko Hanado, 1 Kuniyasu Imamura, 1 Noboru
More informationFundamental Constants and Units
Schladming Winter School 2010: Masses and Constants Lecture I Fundamental Constants and Units Ekkehard Peik Physikalisch-Technische Bundesanstalt Time and Frequency Department Braunschweig, Germany Physikalisch-Technische
More informationWhite Rabbit-Based Time Distribution at NIST
White Rabbit-Based Time Distribution at NIST J. Savory, J. Sherman, and S. Romisch Time and Frequency Division National Institute of Standards and Technology Boulder, CO 80305 joshua.savory@nist.gov Abstract
More informationThe Development of a New Kalman-Filter Time Scale at NIST
The Development of a ew Kalman-Filter Time Scale at IST Jian Yao, Thomas Parker, and Judah Levine Time and Frequency Division, ational Institute of Standards and Technology ABSTRACT We report on a preliminary
More informationDemonstration of a Dual Alkali Rb/Cs Atomic Fountain Clock
1 Demonstration of a Dual Alkali Rb/Cs Atomic Fountain Clock J. Guéna, P. Rosenbusch, Ph. Laurent, M. Abgrall, D. Rovera, M. Lours, G. Santarelli, M.E. Tobar, S. Bize and A. Clairon arxiv:1301.0483v1 [physics.atom-ph]
More informationVibration-Free Pulse Tube Cryocooler System for Gravitational Wave Detectors I
1 Vibration-Free Pulse Tube Cryocooler System for Gravitational Wave Detectors I - Vibration-Reduction Method and Measurement - T. Tomaru A, T. Suzuki A, T. Haruyama A, T. Shintomi A, N. Sato A, A. Yamamoto
More informationarxiv: v2 [physics.atom-ph] 18 Jun 2013
Continuous beam of laser-cooled Yb atoms K. D. Rathod, Alok K. Singh, and Vasant Natarajan Department of Physics, Indian Institute of Science, Bangalore 5612, India arxiv:133.757v2 [physics.atom-ph] 18
More informationLaser Spectroscopy of HeH + 施宙聰 2011 AMO TALK 2011/9/26
Laser Spectroscopy of HeH + 施宙聰 2011 AMO TALK 2011/9/26 Outline Introduction Previous experimental results Saturation spectroscopy Conclusions and future works Diatomic Molecules Total energy=electronic
More informationCLIO. Presenter : : Shinji Miyoki. S.Telada (AIST) A.Yamamoto, T.Shintomi (KEK) and CLIO collaborators
CLIO Presenter : : Shinji Miyoki T.Uchiyama, K.Yamamoto, T.Akutsu M.Ohashi, K.Kuroda,,,(ICRR) S.Telada (AIST) T.Tomaru, T.Suzuki, T.Haruyama. N.Sato, A.Yamamoto, T.Shintomi (KEK) and CLIO collaborators
More informationRACE: Rubidium Atomic Clock Experiment
RACE RACE: Rubidium Atomic Clock Experiment Cold collision frequency shift & 87 clocks Juggling clocks Precision short range atomic force measurements Penn State Russ Hart Ruoxin Li Chad Fertig Ron Legere
More informationMagnetic Field measurements with Csmagnetometers
Magnetic Field measurements with Csmagnetometers in nedm project at PSI A.Pazgalev *, M.Cvijovic, P.Knowles, and A.Weis FRAP, Fribourg University, CH-1700 FRIOURG * on leave from IOFFE Phys.-Tech. Instit.,
More informationAcademic and Research Staff. Prof. R. Weiss. Graduate Students. G. D. Blum T. R. Brown S. Ezekiel
VII. GRAVITATION RESEARCH Academic and Research Staff Prof. R. Weiss Graduate Students G. D. Blum T. R. Brown S. Ezekiel RESEARCH OBJECTIVES Research in this group is concerned with an experimental investigation
More informationBeam Diagnostics for RIBF in RIKEN
Beam Diagnostics for RIBF in RIKEN T. Watanabe, M. Fujimaki, N. Fukunishi, M. Kase, M. Komiyama, N. Sakamoto, H. Watanabe, K. Yamada and O. Kamigaito RIKEN Nishina Center R. Koyama Sumitomo Heavy Industries
More informationStability Transfer between Two Clock Lasers Operating at Different Wavelengths for Absolute Frequency Measurement of Clock Transition in
Stability Transfer between Two Clock Lasers Operating at Different Wavelengths for Absolute Frequency Measurement of Clock Transition in 87 Sr Atsushi Yamaguchi 1,2, Nobuyasu Shiga 3,1, Shigeo Nagano 1,
More informationCold Magnesium Atoms for an Optical Clock
Cold Magnesium Atoms for an Optical Clock Tanja Mehlstäubler Jan Friebe Volker Michels Karsten Moldenhauer Nils Rehbein Dr. Hardo Stöhr Dr. Ernst-Maria Rasel Prof. Dr. Wolfgang Ertmer Institute of Quantum
More informationPROGRESS TOWARDS CONSTRUCTION OF A FERMIONIC ATOMIC CLOCK FOR NASA S DEEP SPACE NETWORK
PROGRESS TOWARDS CONSTRUCTION OF A FERMIONIC ATOMIC CLOCK FOR NASA S DEEP SPACE NETWORK Megan K. Ivory Advisor: Dr. Seth A. Aubin College of William and Mary Atomic clocks are the most accurate time and
More informationInvestigation of H 2 :CH 4 Plasma Composition by Means of Spatially Resolved Optical Spectroscopy
Vol. 114 (2008) ACTA PHYSICA POLONICA A No. 6 A Optical and Acoustical Methods in Science and Technology Investigation of H 2 :CH 4 Plasma Composition by Means of Spatially Resolved Optical Spectroscopy
More informationPROGRESS TOWARDS CONSTRUCTION OF A FERMION ATOMIC CLOCK FOR NASA S DEEP SPACE NETWORK
PROGRESS TOWARDS CONSTRUCTION OF A FERMION ATOMIC CLOCK FOR NASA S DEEP SPACE NETWORK Megan K. Ivory Advisor: Dr. Seth A. Aubin College of William and Mary Abstract: The most accurate time and frequency
More informationCoherent manipulation of atomic wavefunctions in an optical lattice. V. V. Ivanov & A. Alberti, M. Schioppo, G. Ferrari and G. M.
Coherent manipulation of atomic wavefunctions in an optical lattice V. V. Ivanov & A. Alberti, M. Schioppo, G. Ferrari and G. M. Tino Group Andrea Alberti Marco Schioppo Guglielmo M. Tino me Gabriele Ferarri
More informationMission I-SOC: an optical clock on the ISS. S. Schiller (Heinrich-Heine-Universität Düsseldorf) and the I-SOC science team
Mission I-SOC: an optical clock on the ISS S. Schiller (Heinrich-Heine-Universität Düsseldorf) and the I-SOC science team Contents Introduction: quantum sensors ISOC mission: goals and methods ISOC: elegant
More informationQuantum Logic Spectroscopy and Precision Measurements
Quantum Logic Spectroscopy and Precision Measurements Piet O. Schmidt PTB Braunschweig and Leibniz Universität Hannover Bad Honnef, 4. November 2009 Overview What is Quantum Metrology? Quantum Logic with
More informationConstruction of an absolute gravimeter using atom interferometry with cold 87. Rb atoms
Construction of an absolute gravimeter using atom interferometry with cold 87 Rb atoms Patrick Cheinet Julien Le Gouët Kasper Therkildsen Franck Pereira Dos Santos Arnaud Landragin David Holleville André
More informationDetermination of Minimum Detectable Partial Pressure (MDPP) of QMS and its Uncertainty
Workshop on Towards more reliable partial and outgassing rate measurements Berlin, Germany, January 30 - February 1, 2017 Determination of Minimum Detectable Partial Pressure (MDPP) of QMS and its Uncertainty
More informationOptical clock measurements beyond the geodetic limit
Optical clock measurements beyond the geodetic limit Andrew D. Ludlow Optical Frequency Measurements Group National Institute of Standards and Technology Boulder, CO USA Talk outline Atomic clock figures
More informationOptical Clocks and Tests of Fundamental Principles
Les Houches, Ultracold Atoms and Precision Measurements 2014 Optical Clocks and Tests of Fundamental Principles Ekkehard Peik Physikalisch-Technische Bundesanstalt Time and Frequency Department Braunschweig,
More informationPrecisely Engineered Interactions between Light and Ultracold Matter
IL NUOVO CIMENTO Vol.?, N.?? Precisely Engineered Interactions between Light and Ultracold Matter M. M. Boyd, A. D. Ludlow, S. Blatt, G. K. Campbell, T. Zelevinsky, S. M. Foreman, and J. Ye JILA, National
More informationDetermining α from Helium Fine Structure
Determining α from Helium Fine Structure How to Measure Helium Energy Levels REALLY Well Lepton Moments 2006 June 18, 2006 Daniel Farkas and Gerald Gabrielse Harvard University Physics Dept Funding provided
More informationActivities of Birmingham and the Hub
Activities of Birmingham and the Hub Michael Holynski Toulouse, 09/12/2015 m.holynski@bham.ac.uk Outline What does cold atom quantum technology look like? Overview of UKNQT Hub in Sensors and Metrology
More informationOptical Magnetometry Using Nitrogen-Vacancy Centers
Optical Magnetometry Using Nitrogen-Vacancy Centers Michael Onyszczak Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, U.S.A. Submitted: August 18, 2017 Revised: October 19,
More informationQuantum Metrology Optical Atomic Clocks & Many-Body Physics
Quantum Metrology Optical Atomic Clocks & Many-Body Physics Jun Ye JILA, National Institute of Standards & Technology and University of Colorado APS 4CS Fall 2011 meeting, Tucson, Oct. 22, 2011 Many-body
More information