| Title: | ATOMIC TIME SCALES TAI AND TT(BIPM): PRESENT STATUS AND PROSPECTS |
| DOI No: | 10.1142/9789812838223_0060 |
| Source: | FREQUENCY STANDARDS AND METROLOGY (pp 475-482)
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| Author(s): | GÉRARD PETIT
Bureau International des Poids et Mesures, 92312 Sèvres, France
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| Abstract: | We review the stability and accuracy achieved by the reference atomic time scales TAI and TT(BIPM). We show that they presently are at the level of a few 10-16 in relative value, based on the performance of primary standards, of the ensemble time scale and of the time transfer techniques. We consider how the 1 × 10-16 value could be reached or superseded and which are the present limitations to attain this goal. |
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