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Information × Registration Number 0224U031607, 0121U112650 , R & D reports Title Development, production and experimental research of the source of ultracold rubidium atoms for an absolute atomic gravimeter based on the interference of cold atoms, development of theoretical models of new schemes of interaction of cold atoms with Raman laser fields in an atomic interferometer popup.stage_title Head Nehriiko Anatolii M., д.ф.-м.н. Registration Date 23-05-2024 Organization Institute of Physics of National Academy of Sciences of Ukraine popup.description2  The object of research is the physical methods and technical solutions underlying modern absolute atomic gravimeters based on the interference of quantum states of cold atoms, highly monochromatic laser sources of optical radiation for laser cooling of atoms and manipulation of quantum states of rubidium atoms. The aim of the work was the development, manufacture and experimental research of a source of ultracold rubidium atoms for an absolute atomic gravimeter based on the interference of cold atoms, the development of theoretical models of new schemes of interaction of cold atoms with Raman laser fields in an atomic interferometer. The source of ultracold atoms is developed on the basis of methods of deep laser cooling of rubidium atoms in a magneto-optical trap. Testing of the laser system elements, on the basis of which the laser cooling system is being built, was conducted. Drawings of the main parts of the source of ultracold atoms are presented. Theoretical estimates of the intensity of laser radiation necessary for cooling atoms have been made. The technology of filling the source with metallic rubidium and methods of controlled supply of atoms to the laser cooling system are described. A new scheme of a possible atomic interferometer based on the long-term interaction of atoms with counterpulses of long duration is proposed. The proposals are based on the original ideas of the project's executors, published earlier. For theoretical calculations, the Schrödinger equation method was used for the description of rubidium atom interaction with a resonant laser field in a two- and three-level atom model. The planned tasks were completed in full according to the calendar plan and the Technical task. Product Description popup.authors Bashchenko Serhii M. Derzhypolska Liudmyla A. Derzhypolskyi Andrii H. Matsnev Ihor V. Nehriiko Anatolii M. Perederii Oleksandr O. Potomkina Zhanna V. Romanenko Viktor I. Udovytska Olena H. Khodakovskyi Volodymyr M. Yatsenko Leonid P. popup.nrat_date 2024-05-23 Close