2026-09-19T13:30:30Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/688682022-01-13T07:54:41Zcom_1721.1_7582com_1721.1_7581col_1721.1_131022
Wolfgang Ketterle and David E. Pritchard.
Christensen, Caleb A
Massachusetts Institute of Technology. Dept. of Physics.
Massachusetts Institute of Technology. Department of Physics
2012-01-30T16:56:09Z
2012-01-30T16:56:09Z
2011
2011
http://hdl.handle.net/1721.1/68868
773207580
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2011.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 218-226).
The thesis presents results from experiments in which ultracold Sodium-6 and Lithium-23 atomic gases were studied near a Feshbach resonance at high magnetic fields. The enhanced interactions between atoms in the presence of a molecular state enhance collisions, leading to inelastic decay and loss, many-body dynamics, novel quantum phases, and molecule formation. Experimental data is presented alongside relevant theory and numerical models. Results are presented for both homonuclear Na 2 and Li 2 molecules, as well as heteronuclear NaLi resonances, although we were unable to isolate and measure NaLi molecules. Furthermore, experiments and theories related to strongly-correlated quantum phases such as Stoner model ferromagnetism, Bose mediated Fermi interactions, and Bose-Fermi mixtures are presented as applicable to Na and Li gases. Conclusions are presented regarding the feasibility of producing deeply bound, dipolar NaLi molecules, as well as future prospects for strongly interacting atomic gases of Na and Li.
by Caleb A. Christensen.
Ph.D.
226 p.
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by
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http://dspace.mit.edu/handle/1721.1/7582
Physics.
Ultracold molecules from ultracold atoms : interactions in sodium and lithium gas
Thesis
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