Аннотация
When performing precision measurements, the quantity being measured is often perturbed by the measurement process itself. This includes precision frequency measurements for atomic clock applications carried out with Ramsey spectroscopy. With the aim of eliminating probe-induced perturbations, a method of generalized auto-balanced Ramsey spectroscopy (GABRS) is proposed. Here, the usual local oscillator frequency control loop is supplemented with a second control loop derived from secondary Ramsey sequences interspersed with the primary sequences and with a different Ramsey period. This second loop feeds back to a secondary clock variable and ultimately compensates for the perturbation of the clock frequency caused by the measurements in the first loop. We show that such a two-loop scheme can lead to perfect compensation of measurement-induced light shifts and does not suffer from the effects of relaxation, time-dependent pulse fluctuations and phase-jump modulation errors that are typical of other hyper-Ramsey schemes.
Язык оригинала | английский |
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Название основной публикации | 2018 European Frequency and Time Forum, EFTF 2018 |
Издатель | Institute of Electrical and Electronics Engineers Inc. |
Страницы | 348-351 |
Число страниц | 4 |
ISBN (электронное издание) | 9781538656204 |
DOI | |
Состояние | Опубликовано - 9 июл 2018 |
Событие | 2018 European Frequency and Time Forum, EFTF 2018 - Torino, Италия Продолжительность: 10 апр 2018 → 12 апр 2018 |
Конференция
Конференция | 2018 European Frequency and Time Forum, EFTF 2018 |
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Страна | Италия |
Город | Torino |
Период | 10.04.2018 → 12.04.2018 |