Direct observation of nonlocal fermion pairing in an attractive Fermi-Hubbard gas

The Hubbard model of attractively interacting fermions provides a paradigmatic setting for fermion pairing. It features a crossover between Bose-Einstein condensation of tightly bound pairs and Bardeen-Cooper-Schrieffer superfluidity of long-range Cooper pairs, and a "pseudo-gap" region wh...

Full description

Saved in:
Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 2023-07, Vol.381 (6653), p.82-86
Main Authors: Hartke, Thomas, Oreg, Botond, Turnbaugh, Carter, Jia, Ningyuan, Zwierlein, Martin
Format: Article
Language:English
Subjects:
Fermions
Lattice sites
Optical lattices
Ultracold atoms
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by cdi_FETCH-LOGICAL-c391t-552276e9ea9f0e2c4a4100bbaf710187268aaf132e7f329699e3a1b5b139b9973
cites cdi_FETCH-LOGICAL-c391t-552276e9ea9f0e2c4a4100bbaf710187268aaf132e7f329699e3a1b5b139b9973
container_end_page 86
container_issue 6653
container_start_page 82
container_title Science (American Association for the Advancement of Science)
container_volume 381
creator Hartke, Thomas
Oreg, Botond
Turnbaugh, Carter
Jia, Ningyuan
Zwierlein, Martin
description The Hubbard model of attractively interacting fermions provides a paradigmatic setting for fermion pairing. It features a crossover between Bose-Einstein condensation of tightly bound pairs and Bardeen-Cooper-Schrieffer superfluidity of long-range Cooper pairs, and a "pseudo-gap" region where pairs form above the superfluid critical temperature. We directly observe the nonlocal nature of fermion pairing in a Hubbard lattice gas, using spin- and density-resolved imaging of [Formula: see text]1000 fermionic potassium-40 atoms under a bilayer microscope. Complete fermion pairing is revealed by the vanishing of global spin fluctuations with increasing attraction. In the strongly correlated regime, the fermion pair size is found to be on the order of the average interparticle spacing. Our study informs theories of pseudo-gap behavior in strongly correlated fermion systems.
doi_str_mv 10.1126/science.ade4245
format article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_2835272412</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2835272412</sourcerecordid><originalsourceid>FETCH-LOGICAL-c391t-552276e9ea9f0e2c4a4100bbaf710187268aaf132e7f329699e3a1b5b139b9973</originalsourceid><addsrcrecordid>eNpdkN9LwzAQx4Mobk6ffZOCL750y4-maR5lOicMRNDnkmaXkdEmM2kH_ve2rPogHBzcfe7D8UXoluA5ITRfRG3BaZirLWQ042doSrDkqaSYnaMpxixPCyz4BF3FuMe430l2iSZMZAQXRE7R-5MNoNvEVxHCUbXWu8SbxHlXe63qxEBohtlB2WDdLrEuUX21bVC6tUdIVgOQrruqUmGb7FS8RhdG1RFuxj5Dn6vnj-U63by9vC4fN6lmkrQp55SKHCQoaTBQnan-JdxbjCCYFILmhVKGMArCMCpzKYEpUvGKMFlJKdgMPZy8h-C_Ooht2diooa6VA9_FkhaMU0EzQnv0_h-6911w_XcDxfKCcDIIFydKBx9jAFMegm1U-C4JLoe0yzHtcky7v7gbvV3VwPaP_42X_QBAMnwF</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2833681517</pqid></control><display><type>article</type><title>Direct observation of nonlocal fermion pairing in an attractive Fermi-Hubbard gas</title><source>Alma/SFX Local Collection</source><source>Science Online科学在线</source><creator>Hartke, Thomas ; Oreg, Botond ; Turnbaugh, Carter ; Jia, Ningyuan ; Zwierlein, Martin</creator><creatorcontrib>Hartke, Thomas ; Oreg, Botond ; Turnbaugh, Carter ; Jia, Ningyuan ; Zwierlein, Martin</creatorcontrib><description>The Hubbard model of attractively interacting fermions provides a paradigmatic setting for fermion pairing. It features a crossover between Bose-Einstein condensation of tightly bound pairs and Bardeen-Cooper-Schrieffer superfluidity of long-range Cooper pairs, and a "pseudo-gap" region where pairs form above the superfluid critical temperature. We directly observe the nonlocal nature of fermion pairing in a Hubbard lattice gas, using spin- and density-resolved imaging of [Formula: see text]1000 fermionic potassium-40 atoms under a bilayer microscope. Complete fermion pairing is revealed by the vanishing of global spin fluctuations with increasing attraction. In the strongly correlated regime, the fermion pair size is found to be on the order of the average interparticle spacing. Our study informs theories of pseudo-gap behavior in strongly correlated fermion systems.</description><identifier>ISSN: 0036-8075</identifier><identifier>EISSN: 1095-9203</identifier><identifier>DOI: 10.1126/science.ade4245</identifier><identifier>PMID: 37410819</identifier><language>eng</language><publisher>United States: The American Association for the Advancement of Science</publisher><subject>Fermions ; Lattice sites ; Optical lattices ; Ultracold atoms</subject><ispartof>Science (American Association for the Advancement of Science), 2023-07, Vol.381 (6653), p.82-86</ispartof><rights>Copyright © 2023 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c391t-552276e9ea9f0e2c4a4100bbaf710187268aaf132e7f329699e3a1b5b139b9973</citedby><cites>FETCH-LOGICAL-c391t-552276e9ea9f0e2c4a4100bbaf710187268aaf132e7f329699e3a1b5b139b9973</cites><orcidid>0000-0001-7978-0473 ; 0000-0002-5132-8087 ; 0000-0001-8120-8548 ; 0000-0001-6251-9789 ; 0000-0002-0998-1824</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,2882,2883,27923,27924</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/37410819$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Hartke, Thomas</creatorcontrib><creatorcontrib>Oreg, Botond</creatorcontrib><creatorcontrib>Turnbaugh, Carter</creatorcontrib><creatorcontrib>Jia, Ningyuan</creatorcontrib><creatorcontrib>Zwierlein, Martin</creatorcontrib><title>Direct observation of nonlocal fermion pairing in an attractive Fermi-Hubbard gas</title><title>Science (American Association for the Advancement of Science)</title><addtitle>Science</addtitle><description>The Hubbard model of attractively interacting fermions provides a paradigmatic setting for fermion pairing. It features a crossover between Bose-Einstein condensation of tightly bound pairs and Bardeen-Cooper-Schrieffer superfluidity of long-range Cooper pairs, and a "pseudo-gap" region where pairs form above the superfluid critical temperature. We directly observe the nonlocal nature of fermion pairing in a Hubbard lattice gas, using spin- and density-resolved imaging of [Formula: see text]1000 fermionic potassium-40 atoms under a bilayer microscope. Complete fermion pairing is revealed by the vanishing of global spin fluctuations with increasing attraction. In the strongly correlated regime, the fermion pair size is found to be on the order of the average interparticle spacing. Our study informs theories of pseudo-gap behavior in strongly correlated fermion systems.</description><subject>Fermions</subject><subject>Lattice sites</subject><subject>Optical lattices</subject><subject>Ultracold atoms</subject><issn>0036-8075</issn><issn>1095-9203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNpdkN9LwzAQx4Mobk6ffZOCL750y4-maR5lOicMRNDnkmaXkdEmM2kH_ve2rPogHBzcfe7D8UXoluA5ITRfRG3BaZirLWQ042doSrDkqaSYnaMpxixPCyz4BF3FuMe430l2iSZMZAQXRE7R-5MNoNvEVxHCUbXWu8SbxHlXe63qxEBohtlB2WDdLrEuUX21bVC6tUdIVgOQrruqUmGb7FS8RhdG1RFuxj5Dn6vnj-U63by9vC4fN6lmkrQp55SKHCQoaTBQnan-JdxbjCCYFILmhVKGMArCMCpzKYEpUvGKMFlJKdgMPZy8h-C_Ooht2diooa6VA9_FkhaMU0EzQnv0_h-6911w_XcDxfKCcDIIFydKBx9jAFMegm1U-C4JLoe0yzHtcky7v7gbvV3VwPaP_42X_QBAMnwF</recordid><startdate>20230707</startdate><enddate>20230707</enddate><creator>Hartke, Thomas</creator><creator>Oreg, Botond</creator><creator>Turnbaugh, Carter</creator><creator>Jia, Ningyuan</creator><creator>Zwierlein, Martin</creator><general>The American Association for the Advancement of Science</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QG</scope><scope>7QL</scope><scope>7QP</scope><scope>7QQ</scope><scope>7QR</scope><scope>7SC</scope><scope>7SE</scope><scope>7SN</scope><scope>7SP</scope><scope>7SR</scope><scope>7SS</scope><scope>7T7</scope><scope>7TA</scope><scope>7TB</scope><scope>7TK</scope><scope>7TM</scope><scope>7U5</scope><scope>7U9</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>H94</scope><scope>JG9</scope><scope>JQ2</scope><scope>K9.</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>M7N</scope><scope>P64</scope><scope>RC3</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0001-7978-0473</orcidid><orcidid>https://orcid.org/0000-0002-5132-8087</orcidid><orcidid>https://orcid.org/0000-0001-8120-8548</orcidid><orcidid>https://orcid.org/0000-0001-6251-9789</orcidid><orcidid>https://orcid.org/0000-0002-0998-1824</orcidid></search><sort><creationdate>20230707</creationdate><title>Direct observation of nonlocal fermion pairing in an attractive Fermi-Hubbard gas</title><author>Hartke, Thomas ; Oreg, Botond ; Turnbaugh, Carter ; Jia, Ningyuan ; Zwierlein, Martin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c391t-552276e9ea9f0e2c4a4100bbaf710187268aaf132e7f329699e3a1b5b139b9973</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Fermions</topic><topic>Lattice sites</topic><topic>Optical lattices</topic><topic>Ultracold atoms</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hartke, Thomas</creatorcontrib><creatorcontrib>Oreg, Botond</creatorcontrib><creatorcontrib>Turnbaugh, Carter</creatorcontrib><creatorcontrib>Jia, Ningyuan</creatorcontrib><creatorcontrib>Zwierlein, Martin</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Animal Behavior Abstracts</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Calcium &amp; Calcified Tissue Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Chemoreception Abstracts</collection><collection>Computer and Information Systems Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Ecology Abstracts</collection><collection>Electronics &amp; Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Materials Business File</collection><collection>Mechanical &amp; Transportation Engineering Abstracts</collection><collection>Neurosciences Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ANTE: Abstracts in New Technology &amp; Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Copper Technical Reference Library</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts – Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Science (American Association for the Advancement of Science)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hartke, Thomas</au><au>Oreg, Botond</au><au>Turnbaugh, Carter</au><au>Jia, Ningyuan</au><au>Zwierlein, Martin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Direct observation of nonlocal fermion pairing in an attractive Fermi-Hubbard gas</atitle><jtitle>Science (American Association for the Advancement of Science)</jtitle><addtitle>Science</addtitle><date>2023-07-07</date><risdate>2023</risdate><volume>381</volume><issue>6653</issue><spage>82</spage><epage>86</epage><pages>82-86</pages><issn>0036-8075</issn><eissn>1095-9203</eissn><abstract>The Hubbard model of attractively interacting fermions provides a paradigmatic setting for fermion pairing. It features a crossover between Bose-Einstein condensation of tightly bound pairs and Bardeen-Cooper-Schrieffer superfluidity of long-range Cooper pairs, and a "pseudo-gap" region where pairs form above the superfluid critical temperature. We directly observe the nonlocal nature of fermion pairing in a Hubbard lattice gas, using spin- and density-resolved imaging of [Formula: see text]1000 fermionic potassium-40 atoms under a bilayer microscope. Complete fermion pairing is revealed by the vanishing of global spin fluctuations with increasing attraction. In the strongly correlated regime, the fermion pair size is found to be on the order of the average interparticle spacing. Our study informs theories of pseudo-gap behavior in strongly correlated fermion systems.</abstract><cop>United States</cop><pub>The American Association for the Advancement of Science</pub><pmid>37410819</pmid><doi>10.1126/science.ade4245</doi><tpages>5</tpages><orcidid>https://orcid.org/0000-0001-7978-0473</orcidid><orcidid>https://orcid.org/0000-0002-5132-8087</orcidid><orcidid>https://orcid.org/0000-0001-8120-8548</orcidid><orcidid>https://orcid.org/0000-0001-6251-9789</orcidid><orcidid>https://orcid.org/0000-0002-0998-1824</orcidid></addata></record>
fulltext fulltext
identifier ISSN: 0036-8075
ispartof Science (American Association for the Advancement of Science), 2023-07, Vol.381 (6653), p.82-86
issn 0036-8075
1095-9203
language eng
recordid cdi_proquest_miscellaneous_2835272412
source Alma/SFX Local Collection; Science Online科学在线
subjects Fermions
Lattice sites
Optical lattices
Ultracold atoms
title Direct observation of nonlocal fermion pairing in an attractive Fermi-Hubbard gas
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-13T06%3A08%3A33IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Direct%20observation%20of%20nonlocal%20fermion%20pairing%20in%20an%20attractive%20Fermi-Hubbard%20gas&rft.jtitle=Science%20(American%20Association%20for%20the%20Advancement%20of%20Science)&rft.au=Hartke,%20Thomas&rft.date=2023-07-07&rft.volume=381&rft.issue=6653&rft.spage=82&rft.epage=86&rft.pages=82-86&rft.issn=0036-8075&rft.eissn=1095-9203&rft_id=info:doi/10.1126/science.ade4245&rft_dat=%3Cproquest_cross%3E2835272412%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c391t-552276e9ea9f0e2c4a4100bbaf710187268aaf132e7f329699e3a1b5b139b9973%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=2833681517&rft_id=info:pmid/37410819&rfr_iscdi=true