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Leggett, Anthony J. Zhang, Shizhong 2015-09-25T20:03:21Z 2015-09-25T20:03:21Z 10000-01-01 2009 2009 In Chapter 5, we consider the BEC-BCS crossover problem in the dilute atomic gases frm a general point of view. We show that as a result of the specific properties of the ultra-cold Fermi gases, there exists a universal function which incorporates all the many-body information of the system. Although we do not yet know how to compute the function analytically, we show that many physical quantities can be expressed in terms of this function. It gives an intuitive way of understanding of how universality arises in the cold atomic gases. Made available in DSpace on 2015-09-25T20:03:21Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3395560.pdf: 1951426 bytes, checksum: 3aa3df07098d8da9517801905e35ff91 (MD5) Previous issue date: 2009 Embargo set by: Seth Robbins for item 81909 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 133 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2009. http://hdl.handle.net/2142/80627 (MiAaPQ)AAI3395560 eng Physics, Low Temperature Strongly Interacting Fermi Gases, Radio Frequency Spectroscopy and Universality text Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.