Doublon-Hole Correlations and Fluctuation Thermometry in a Fermi-Hubbard Gas
We report on the single atom and single site-resolved detection of the total density in a cold atom realization of the 2D Fermi-Hubbard model. Fluorescence imaging of doublons is achieved by splitting each lattice site into a double well, thereby separating atom pairs. Full density readout yields a...
| 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/1721.1/135292 |
| _version_ | 1826206748182052864 |
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| author | Hartke, Thomas Oreg, Botond Jia, Ningyuan Zwierlein, Martin |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Hartke, Thomas Oreg, Botond Jia, Ningyuan Zwierlein, Martin |
| author_sort | Hartke, Thomas |
| collection | MIT |
| description | We report on the single atom and single site-resolved detection of the total density in a cold atom realization of the 2D Fermi-Hubbard model. Fluorescence imaging of doublons is achieved by splitting each lattice site into a double well, thereby separating atom pairs. Full density readout yields a direct measurement of the equation of state, including direct thermometry via the fluctuation-dissipation theorem. Site-resolved density correlations reveal the Pauli hole at low filling, and strong doublon-hole correlations near half filling. These are shown to account for the difference between local and nonlocal density fluctuations in the Mott insulator. Our technique enables the study of atom-resolved charge transport in the Fermi-Hubbard model, the site-resolved observation of molecules, and the creation of bilayer Fermi-Hubbard systems. |
| first_indexed | 2024-09-23T13:37:38Z |
| format | Article |
| id | mit-1721.1/135292 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T13:37:38Z |
| publishDate | 2021 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1352922023-02-17T16:33:06Z Doublon-Hole Correlations and Fluctuation Thermometry in a Fermi-Hubbard Gas Hartke, Thomas Oreg, Botond Jia, Ningyuan Zwierlein, Martin Massachusetts Institute of Technology. Department of Physics MIT-Harvard Center for Ultracold Atoms Massachusetts Institute of Technology. Research Laboratory of Electronics We report on the single atom and single site-resolved detection of the total density in a cold atom realization of the 2D Fermi-Hubbard model. Fluorescence imaging of doublons is achieved by splitting each lattice site into a double well, thereby separating atom pairs. Full density readout yields a direct measurement of the equation of state, including direct thermometry via the fluctuation-dissipation theorem. Site-resolved density correlations reveal the Pauli hole at low filling, and strong doublon-hole correlations near half filling. These are shown to account for the difference between local and nonlocal density fluctuations in the Mott insulator. Our technique enables the study of atom-resolved charge transport in the Fermi-Hubbard model, the site-resolved observation of molecules, and the creation of bilayer Fermi-Hubbard systems. 2021-10-27T20:22:50Z 2021-10-27T20:22:50Z 2020 2021-07-08T18:14:14Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/135292 en 10.1103/PHYSREVLETT.125.113601 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 | Hartke, Thomas Oreg, Botond Jia, Ningyuan Zwierlein, Martin Doublon-Hole Correlations and Fluctuation Thermometry in a Fermi-Hubbard Gas |
| title | Doublon-Hole Correlations and Fluctuation Thermometry in a Fermi-Hubbard Gas |
| title_full | Doublon-Hole Correlations and Fluctuation Thermometry in a Fermi-Hubbard Gas |
| title_fullStr | Doublon-Hole Correlations and Fluctuation Thermometry in a Fermi-Hubbard Gas |
| title_full_unstemmed | Doublon-Hole Correlations and Fluctuation Thermometry in a Fermi-Hubbard Gas |
| title_short | Doublon-Hole Correlations and Fluctuation Thermometry in a Fermi-Hubbard Gas |
| title_sort | doublon hole correlations and fluctuation thermometry in a fermi hubbard gas |
| url | https://hdl.handle.net/1721.1/135292 |
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