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The Brazilian time and frequency atomic standards program
(Academia Brasileira de Ciências, 2008)
Cesium atomic beam clocks have been the workhorse for many demanding applications in science and technology for the past four decades. Tests of the fundamental laws of physics and the search for minute changes in fundamental ...
Towards an optical lattice clock based on neutral mercury
(Romanian AcademyBucharest, 2008)
We are investigating the possibilities of using neutral mercury as a new species to realize a highly accurate atomic clock using the non-perturbing dipole lattice trapping scheme. Typically, accuracy below 10-17 is targeted, ...
Medindo a temperatura de um gás no regime de micro-Kelvin
(SOC BRASILEIRA FISICASAO PAULO, 2013-08-02)
O desenvolvimento científico nos permite trabalhar hoje com gases em temperaturas muito inferiores aos 10-6 K. Estes gases, uma vez obtidos por técnicas de resfriamento óptico, precisam ser caracterizados com relaçãao às ...
Long term experimental results of a rubidium atomic clock with drift compensation.
(SEMETRO, 2011)
This paper presents the results of two years of operation of an automatic system that compensates drifts of a rubidium atomic clock. This clock is the base of the Uruguayan National Time-Frequency Standard.