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Article: Exploring exotic superfluidity of polarized ultracold fermions in optical lattices
Title | Exploring exotic superfluidity of polarized ultracold fermions in optical lattices | ||||||||||||
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Authors | |||||||||||||
Issue Date | 2009 | ||||||||||||
Publisher | American Physical Society. The Journal's web site is located at http://prb.aps.org/ | ||||||||||||
Citation | Physical Review B (Condensed Matter and Materials Physics), 2009, v. 79 n. 5, article no. 054512 How to Cite? | ||||||||||||
Abstract | Superfluidity with imbalanced populations of harmonically trapped ultracold fermions in a two-dimensional optical lattice is investigated by solving the Bogoliubov-de Gennes equations. The intriguing richness of patterns between competing ferromagnetic and superfluid phases for different filling densities has been revealed. At low density, the main experimental features could be reproduced, especially the bimodal distribution of ferromagnetism. The superfluid-pairing gap oscillates radially, demonstrating the realization of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state. In the high-density regime, another type of FFLO state with gap oscillation along the angular direction shows up and the accompanying ferromagnetic order modulates accordingly. The square lattice like FFLO state may appear at the intermediate densities. Moreover, we suggest other experimental proposals of observing the unique FFLO features straightforwardly. © 2009 The American Physical Society. | ||||||||||||
Persistent Identifier | http://hdl.handle.net/10722/59605 | ||||||||||||
ISSN | 2014 Impact Factor: 3.736 | ||||||||||||
ISI Accession Number ID |
Funding Information: This work was supported by the RGC grants of Hong Kong (Grant Nos. HKU7012/06P, HKU7051/06P, and HKU-3/05C), Seed Funding grants of HKU, the National Natural Science Foundation of China (Grant Nos. 10429401 and 10874032), the State Key Programs of China (Grant Nos. 2006CB921800 and 2009CB929204), and the Robert A. Welch Foundation under Grant No. E-1146. Y.C. acknowledges support from the Shanghai Municipal Education Commission. | ||||||||||||
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Chen, Y | en_HK |
dc.contributor.author | Wang, ZD | en_HK |
dc.contributor.author | Zhang, FC | en_HK |
dc.contributor.author | Ting, CS | en_HK |
dc.date.accessioned | 2010-05-31T03:53:40Z | - |
dc.date.available | 2010-05-31T03:53:40Z | - |
dc.date.issued | 2009 | en_HK |
dc.identifier.citation | Physical Review B (Condensed Matter and Materials Physics), 2009, v. 79 n. 5, article no. 054512 | - |
dc.identifier.issn | 1098-0121 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/59605 | - |
dc.description.abstract | Superfluidity with imbalanced populations of harmonically trapped ultracold fermions in a two-dimensional optical lattice is investigated by solving the Bogoliubov-de Gennes equations. The intriguing richness of patterns between competing ferromagnetic and superfluid phases for different filling densities has been revealed. At low density, the main experimental features could be reproduced, especially the bimodal distribution of ferromagnetism. The superfluid-pairing gap oscillates radially, demonstrating the realization of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state. In the high-density regime, another type of FFLO state with gap oscillation along the angular direction shows up and the accompanying ferromagnetic order modulates accordingly. The square lattice like FFLO state may appear at the intermediate densities. Moreover, we suggest other experimental proposals of observing the unique FFLO features straightforwardly. © 2009 The American Physical Society. | en_HK |
dc.language | eng | en_HK |
dc.publisher | American Physical Society. The Journal's web site is located at http://prb.aps.org/ | en_HK |
dc.relation.ispartof | Physical Review B (Condensed Matter and Materials Physics) | - |
dc.title | Exploring exotic superfluidity of polarized ultracold fermions in optical lattices | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0163-1829&volume=79&spage=054512: 1&epage=6&date=2009&atitle=Exploring+exotic+superfluidity+of+polarized+ultracold+fermions+in+optical+lattices | en_HK |
dc.identifier.email | Wang, ZD: zwang@hkucc.hku.hk | en_HK |
dc.identifier.email | Zhang, FC: fuchun@hkucc.hku.hk | en_HK |
dc.identifier.authority | Wang, ZD=rp00802 | en_HK |
dc.identifier.authority | Zhang, FC=rp00840 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1103/PhysRevB.79.054512 | en_HK |
dc.identifier.scopus | eid_2-s2.0-62549121218 | en_HK |
dc.identifier.hkuros | 155372 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-62549121218&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 79 | en_HK |
dc.identifier.issue | 5 | en_HK |
dc.identifier.spage | article no. 054512 | - |
dc.identifier.epage | article no. 054512 | - |
dc.identifier.isi | WOS:000263815400086 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Chen, Y=7601428288 | en_HK |
dc.identifier.scopusauthorid | Wang, ZD=14828459100 | en_HK |
dc.identifier.scopusauthorid | Zhang, FC=14012468800 | en_HK |
dc.identifier.scopusauthorid | Ting, CS=7202187179 | en_HK |
dc.identifier.issnl | 1098-0121 | - |