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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The modification of the variation quantum measurement is considered, which allows to eliminate the main shortcoming of such a measurement — the meter hardware setup dependence on the signal shape and arrival time. This method is based on approximation of the signal by series of short rectangular “slices” and periodical applying the variation measurement procedure fitted to such a rectangular pulse. It allows to reconstruct the signal shape with precision not limited by the standard quantum limit. “Price”, in the case of the parametric position meters (including interferometric ones), is pumping energy 720/π4≈7.4 times higher than for the usual variation measurement.