eprintid: 1332997 rev_number: 33 eprint_status: archive userid: 608 dir: disk0/01/33/29/97 datestamp: 2011-12-10 19:06:58 lastmod: 2021-10-17 23:55:49 status_changed: 2011-12-10 19:06:58 type: article metadata_visibility: show item_issues_count: 0 creators_name: Parish, MM creators_name: Mihaila, B creators_name: Simons, BD creators_name: Littlewood, PB title: Fermion-mediated BCS-BEC crossover in ultracold K-40 gases ispublished: pub divisions: UCL divisions: B04 divisions: C06 keywords: BOSE-CONDENSATION, SUPERCONDUCTIVITY note: © 2005 The American Physical Society abstract: Studies of Feshbach resonance phenomena in fermionic alkali gases have drawn heavily on the intuition afforded by a Fermi-Bose theory which presents the Feshbach molecule as a featureless Bose particle. While this model may provide a suitable platform to explore the Li-6 system, we argue that its application to K-40, where the hyperfine structure is inverted, is inappropriate. Introducing a three-state Fermi model, where a spin state is shared by the open and closed channel states, we show that effects of "Pauli blocking" appear in the internal structure of the condensate wave function. date: 2005-06-24 publisher: AMERICAN PHYSICAL SOC official_url: http://dx.doi.org/10.1103/PhysRevLett.94.240402 oa_status: green language: eng primo: open primo_central: open_green article_type_text: Article verified: verified_batch elements_source: Web of Science elements_id: 355019 doi: 10.1103/PhysRevLett.94.240402 language_elements: EN lyricists_name: Parish, Meera lyricists_id: MPARI66 full_text_status: public publication: PHYS REV LETT volume: 94 number: 24 article_number: 240402 issn: 0031-9007 citation: Parish, MM; Mihaila, B; Simons, BD; Littlewood, PB; (2005) Fermion-mediated BCS-BEC crossover in ultracold K-40 gases. PHYS REV LETT , 94 (24) , Article 240402. 10.1103/PhysRevLett.94.240402 <https://doi.org/10.1103/PhysRevLett.94.240402>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/1332997/1/1332997.pdf