Spin Gradient Thermometry for Ultracold Atoms in Optical Lattices
We demonstrate spin gradient thermometry, a new general method of measuring the temperature of ultracold atoms in optical lattices. We realize a mixture of spins separated by a magnetic field gradient. Measurement of the width of the transition layer between the two spin domains serves as a new meth...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/52511 https://orcid.org/0000-0001-5697-1496 https://orcid.org/0000-0002-9528-3044 |
| _version_ | 1811078414527889408 |
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| author | Weld, David M. Medley, Patrick M. Miyake, Hirokazu Hucul, David Pritchard, David E. Ketterle, Wolfgang |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Weld, David M. Medley, Patrick M. Miyake, Hirokazu Hucul, David Pritchard, David E. Ketterle, Wolfgang |
| author_sort | Weld, David M. |
| collection | MIT |
| description | We demonstrate spin gradient thermometry, a new general method of measuring the temperature of ultracold atoms in optical lattices. We realize a mixture of spins separated by a magnetic field gradient. Measurement of the width of the transition layer between the two spin domains serves as a new method of thermometry which is observed to work over a broad range of lattice depths and temperatures, including in the Mott insulator regime. We demonstrate the thermometry using ultracold rubidium atoms, and suggest that interesting spin physics can be realized in this system. The lowest measured temperature is 1 nK, indicating that the system has reached the quantum regime, where insulating shells are separated by superfluid layers. |
| first_indexed | 2024-09-23T10:59:13Z |
| format | Article |
| id | mit-1721.1/52511 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:59:13Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/525112022-10-01T00:25:12Z Spin Gradient Thermometry for Ultracold Atoms in Optical Lattices Weld, David M. Medley, Patrick M. Miyake, Hirokazu Hucul, David Pritchard, David E. Ketterle, Wolfgang Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Research Laboratory of Electronics Ketterle, Wolfgang Weld, David M. Medley, Patrick M. Miyake, Hirokazu Hucul, David Pritchard, David E. Ketterle, Wolfgang We demonstrate spin gradient thermometry, a new general method of measuring the temperature of ultracold atoms in optical lattices. We realize a mixture of spins separated by a magnetic field gradient. Measurement of the width of the transition layer between the two spin domains serves as a new method of thermometry which is observed to work over a broad range of lattice depths and temperatures, including in the Mott insulator regime. We demonstrate the thermometry using ultracold rubidium atoms, and suggest that interesting spin physics can be realized in this system. The lowest measured temperature is 1 nK, indicating that the system has reached the quantum regime, where insulating shells are separated by superfluid layers. Defense Advanced Projects Research Agency (OLE program) Army Research Office (Grant No. W911NF-07-1-0493) National Science Foundation (MURI program) 2010-03-11T18:10:02Z 2010-03-11T18:10:02Z 2009-12 2009-10 Article http://purl.org/eprint/type/JournalArticle 0031-9007 http://hdl.handle.net/1721.1/52511 Weld, David M. et al. “Spin Gradient Thermometry for Ultracold Atoms in Optical Lattices.” Physical Review Letters 103.24 (2009): 245301. © 2009 The American Physical Society https://orcid.org/0000-0001-5697-1496 https://orcid.org/0000-0002-9528-3044 en_US http://dx.doi.org/10.1103/PhysRevLett.103.245301 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 |
| spellingShingle | Weld, David M. Medley, Patrick M. Miyake, Hirokazu Hucul, David Pritchard, David E. Ketterle, Wolfgang Spin Gradient Thermometry for Ultracold Atoms in Optical Lattices |
| title | Spin Gradient Thermometry for Ultracold Atoms in Optical Lattices |
| title_full | Spin Gradient Thermometry for Ultracold Atoms in Optical Lattices |
| title_fullStr | Spin Gradient Thermometry for Ultracold Atoms in Optical Lattices |
| title_full_unstemmed | Spin Gradient Thermometry for Ultracold Atoms in Optical Lattices |
| title_short | Spin Gradient Thermometry for Ultracold Atoms in Optical Lattices |
| title_sort | spin gradient thermometry for ultracold atoms in optical lattices |
| url | http://hdl.handle.net/1721.1/52511 https://orcid.org/0000-0001-5697-1496 https://orcid.org/0000-0002-9528-3044 |
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