Experimental realization of an optical second with strontium lattice clocks

被引：210

作者：

Le Targat, R. ^{[1
]}

Lorini, L. ^{[1
,2
]}

Le Coq, Y. ^{[1
]}

Zawada, M. ^{[1
,3
]}

Guena, J. ^{[1
]}

Abgrall, M. ^{[1
]}

Gurov, M. ^{[1
]}

Rosenbusch, P. ^{[1
]}

Rovera, D. G. ^{[1
]}

Nagorny, B. ^{[1
,3
]}

Gartman, R. ^{[1
,3
]}

Westergaard, P. G. ^{[1
]}

Tobar, M. E. ^{[4
]}

Lours, M. ^{[1
]}

Santarelli, G. ^{[1
]}

Clairon, A. ^{[1
]}

Bize, S. ^{[1
]}

Laurent, P. ^{[1
]}

Lemonde, P. ^{[1
]}

Lodewyck, J. ^{[1
]}

机构：

[1] Observ Paris, UPMC, CNRS, LNE SYRTE, F-75014 Paris, France

[2] Ist Nazl Ric Metrol, I-10135 Turin, Italy

[3] Nicholas Copernicus Univ, Inst Phys, PL-87100 Torun, Poland

[4] Univ Western Australia, Sch Phys M013, Crawley, WA 6009, Australia

来源：

NATURE COMMUNICATIONS | 2013年 / 4卷

关键词：

NOBEL LECTURE; X 10(-16); FREQUENCY; METROLOGY; CESIUM; SHIFT;

D O I：

10.1038/ncomms3109

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Progress in realizing the SI second had multiple technological impacts and enabled further constraint of theoretical models in fundamental physics. Caesium microwave fountains, realizing best the second according to its current definition with a relative uncertainty of 2-4 x 10(-16), have already been overtaken by atomic clocks referenced to an optical transition, which are both more stable and more accurate. Here we present an important step in the direction of a possible new definition of the second. Our system of five clocks connects with an unprecedented consistency the optical and the microwave worlds. For the first time, two state-of-the-art strontium optical lattice clocks are proven to agree within their accuracy budget, with a total uncertainty of 1.5 x 10(-16). Their comparison with three independent caesium fountains shows a degree of accuracy now only limited by the best realizations of the microwave-defined second, at the level of 3.1 x 10(-16).

引用

页数：8

共 48 条

[1] Direct excitation of the forbidden clock transition in neutral 174Yb atoms confined to an optical lattice [J].

Barber, ZW ;

Hoyt, CW ;

Oates, CW ;

Hollberg, L ;

Taichenachev, AV ;

Yudin, VI .

PHYSICAL REVIEW LETTERS, 2006, 96 (08)

[2] Determination of the 5d6s 3D1 state lifetime and blackbody-radiation clock shift in Yb [J].

Beloy, K. ;

Sherman, J. A. ;

Lemke, N. D. ;

Hinkley, N. ;

Oates, C. W. ;

Ludlow, A. D. .

PHYSICAL REVIEW A, 2012, 86 (05)

[3] New limits on coupling of fundamental constants to gravity using 87Sr optical lattice clocks [J].

Blatt, S. ;

Ludlow, A. D. ;

Campbell, G. K. ;

Thomsen, J. W. ;

Zelevinsky, T. ;

Boyd, M. M. ;

Ye, J. ;

Baillard, X. ;

Fouche, M. ;

Le Targat, R. ;

Brusch, A. ;

Lemonde, P. ;

Takamoto, M. ;

Hong, F. -L. ;

Katori, H. ;

Flambaum, V. V. .

PHYSICAL REVIEW LETTERS, 2008, 100 (14)

[4] Geophysical applicability of atomic clocks: direct continental geoid mapping [J].

Bondarescu, Ruxandra ;

Bondarescu, Mihai ;

Hetenyi, Gyoergy ;

Boschi, Lapo ;

Jetzer, Philippe ;

Balakrishna, Jayashree .

GEOPHYSICAL JOURNAL INTERNATIONAL, 2012, 191 (01) :78-82

[5] Frequency Comparison of Two High-Accuracy Al+ Optical Clocks [J].

Chou, C. W. ;

Hume, D. B. ;

Koelemeij, J. C. J. ;

Wineland, D. J. ;

Rosenband, T. .

PHYSICAL REVIEW LETTERS, 2010, 104 (07)

[6] The 87Sr optical frequency standard at PTB [J].

Falke, St ;

Schnatz, H. ;

Winfred, J. S. R. Vellore ;

Middelmann, Th ;

Vogt, St ;

Weyers, S. ;

Lipphardt, B. ;

Grosche, G. ;

Riehle, F. ;

Sterr, U. ;

Lisdat, Ch .

METROLOGIA, 2011, 48 (05) :399-407

[7] Decoherence and Collisional Frequency Shifts of Trapped Bosons and Fermions [J].

Gibble, Kurt .

PHYSICAL REVIEW LETTERS, 2009, 103 (11)

[8] Improved Tests of Local Position Invariance Using 87Rb and 133Cs Fountains [J].

Guena, J. ;

Abgrall, M. ;

Rovera, D. ;

Rosenbusch, P. ;

Tobar, M. E. ;

Laurent, Ph ;

Clairon, A. ;

Bize, S. .

PHYSICAL REVIEW LETTERS, 2012, 109 (08)

[9] Progress in Atomic Fountains at LNE-SYRTE [J].

Guena, Jocelyne ;

Abgrall, Michel ;

Rovera, Daniele ;

Laurent, Philippe ;

Chupin, Baptiste ;

Lours, Michel ;

Santarelli, Giorgio ;

Rosenbusch, Peter ;

Tobar, Michael E. ;

Li, Ruoxin ;

Gibble, Kurt ;

Clairon, Andre ;

Bize, Sebastien .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2012, 59 (03) :391-410

[10] Nobel Lecture:: Passion for precision [J].

Haensch, Theodor W. .

REVIEWS OF MODERN PHYSICS, 2006, 78 (04) :1297-1309

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