Observation of 2D Fermionic Mott Insulators of K 40 with Single-Site Resolution
© 2016 American Physical Society. We report on the site-resolved observation of characteristic states of the two-dimensional repulsive Fermi-Hubbard model, using ultracold K40 atoms in an optical lattice. By varying the tunneling, interaction strength, and external confinement, we realize metallic,...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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American Physical Society (APS)
2021
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| Online Access: | https://hdl.handle.net/1721.1/133902 |
| _version_ | 1826206062785593344 |
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| author | Cheuk, Lawrence W Nichols, Matthew A Lawrence, Katherine R Okan, Melih Zhang, Hao Zwierlein, Martin W |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Cheuk, Lawrence W Nichols, Matthew A Lawrence, Katherine R Okan, Melih Zhang, Hao Zwierlein, Martin W |
| author_sort | Cheuk, Lawrence W |
| collection | MIT |
| description | © 2016 American Physical Society. We report on the site-resolved observation of characteristic states of the two-dimensional repulsive Fermi-Hubbard model, using ultracold K40 atoms in an optical lattice. By varying the tunneling, interaction strength, and external confinement, we realize metallic, Mott-insulating, and band-insulating states. We directly measure the local moment, which quantifies the degree of on-site magnetization, as a function of temperature and chemical potential. Entropies per particle as low as 0.99(6)kB indicate that nearest-neighbor antiferromagnetic correlations should be detectable using spin-sensitive imaging. |
| first_indexed | 2024-09-23T13:23:30Z |
| format | Article |
| id | mit-1721.1/133902 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T13:23:30Z |
| publishDate | 2021 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1339022023-02-17T21:42:08Z Observation of 2D Fermionic Mott Insulators of K 40 with Single-Site Resolution Cheuk, Lawrence W Nichols, Matthew A Lawrence, Katherine R Okan, Melih Zhang, Hao Zwierlein, Martin W Massachusetts Institute of Technology. Department of Physics MIT-Harvard Center for Ultracold Atoms Massachusetts Institute of Technology. Research Laboratory of Electronics © 2016 American Physical Society. We report on the site-resolved observation of characteristic states of the two-dimensional repulsive Fermi-Hubbard model, using ultracold K40 atoms in an optical lattice. By varying the tunneling, interaction strength, and external confinement, we realize metallic, Mott-insulating, and band-insulating states. We directly measure the local moment, which quantifies the degree of on-site magnetization, as a function of temperature and chemical potential. Entropies per particle as low as 0.99(6)kB indicate that nearest-neighbor antiferromagnetic correlations should be detectable using spin-sensitive imaging. 2021-10-27T19:57:09Z 2021-10-27T19:57:09Z 2016 2019-05-14T12:19:06Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/133902 Cheuk, L. W., et al. "Observation of 2d Fermionic Mott Insulators of K 40 with Single-Site Resolution." Physical Review Letters 116 23 (2016). en 10.1103/PHYSREVLETT.116.235301 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) APS |
| spellingShingle | Cheuk, Lawrence W Nichols, Matthew A Lawrence, Katherine R Okan, Melih Zhang, Hao Zwierlein, Martin W Observation of 2D Fermionic Mott Insulators of K 40 with Single-Site Resolution |
| title | Observation of 2D Fermionic Mott Insulators of K 40 with Single-Site Resolution |
| title_full | Observation of 2D Fermionic Mott Insulators of K 40 with Single-Site Resolution |
| title_fullStr | Observation of 2D Fermionic Mott Insulators of K 40 with Single-Site Resolution |
| title_full_unstemmed | Observation of 2D Fermionic Mott Insulators of K 40 with Single-Site Resolution |
| title_short | Observation of 2D Fermionic Mott Insulators of K 40 with Single-Site Resolution |
| title_sort | observation of 2d fermionic mott insulators of k 40 with single site resolution |
| url | https://hdl.handle.net/1721.1/133902 |
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