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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 11 to 13 of 13 (0.06 seconds)Spelling suggestions: "subject:"cattering 1ength"" "subject:"cattering 4length""
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Cold elastic collisions of sodium and rubidiumBreuer, John 01 July 2009 (has links)
In this thesis we numerically compute the scattering lengths and bound states for sodium-rubidium collisions at low energy. This work was motivated by experiments which aim to produce Bose-Einstein condensates (BEC) mixtures of sodium-rubidium. Elastic collision properties are important for the rethermalization of the atoms during the evaporative cooling process. Inelastic processes, which we also discuss to some extent, cause trap losses in those experiments. In order to reach the required temperature and density the elastic collision rates should be sufficiently large compared to the inelastic rates. The scattering lengths, which completely specify the elastic collision parameters at low energy, determine the miscibility and phase diagram of the sodium-rubidium condensate mixture. We calculate the scattering lengths approximately and find agreement with previous calculations indicating that miscible phases of sodium and rubidium condensates do not appear to be feasible in the absence of external fields.
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| 12 |
Lambda femtoscopy in √s<sub>NN</sub> = 2.76 TeV Pb-Pb collisions at ALICESalzwedel, Jai 08 August 2017 (has links)
No description available.
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| 13 |
Topics in the Physics and Astrophysics of Neutron StarsPostnikov, Sergey A. 16 April 2010 (has links)
No description available.
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