Transport dynamics of ultracold atoms in a triple-well transistor-like potential
The transport of atoms is experimentally studied in a transistor-like triple-well potential consisting of a narrow gate well surrounded by source and drain wells. Atoms are initially loaded into the source well with pre-determined temperature and chemical potential. Energetic atoms flow from the sou...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2016-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/18/2/025010 |
| _version_ | 1797751049536143360 |
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| author | Seth C Caliga Cameron J E Straatsma Dana Z Anderson |
| author_facet | Seth C Caliga Cameron J E Straatsma Dana Z Anderson |
| author_sort | Seth C Caliga |
| collection | DOAJ |
| description | The transport of atoms is experimentally studied in a transistor-like triple-well potential consisting of a narrow gate well surrounded by source and drain wells. Atoms are initially loaded into the source well with pre-determined temperature and chemical potential. Energetic atoms flow from the source, across the gate, and into the drain where they are removed using a resonant light beam. The manifestation of atom–atom interactions and dissipation is evidenced by a rapid population growth in the initially vacant gate well. The transport dynamics are shown to depend strongly on a feedback parameter determined by the relative heights of the two barriers forming the gate region. For a range of feedback parameter values, experiments establish that the gate atoms develop a larger chemical potential and lower temperature than those in the source. |
| first_indexed | 2024-03-12T16:41:43Z |
| format | Article |
| id | doaj.art-b23d8388691547ed813f2b0f905453ad |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:41:43Z |
| publishDate | 2016-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-b23d8388691547ed813f2b0f905453ad2023-08-08T14:27:41ZengIOP PublishingNew Journal of Physics1367-26302016-01-0118202501010.1088/1367-2630/18/2/025010Transport dynamics of ultracold atoms in a triple-well transistor-like potentialSeth C Caliga0Cameron J E Straatsma1Dana Z Anderson2JILA and Department of Physics, University of Colorado and National Institute for Standards and Technology , Boulder, CO 80309-0440, USAJILA and Department of Electrical, Computer, and Energy Engineering, University of Colorado , Boulder, CO 80309-0440, USAJILA and Department of Physics, University of Colorado and National Institute for Standards and Technology , Boulder, CO 80309-0440, USAThe transport of atoms is experimentally studied in a transistor-like triple-well potential consisting of a narrow gate well surrounded by source and drain wells. Atoms are initially loaded into the source well with pre-determined temperature and chemical potential. Energetic atoms flow from the source, across the gate, and into the drain where they are removed using a resonant light beam. The manifestation of atom–atom interactions and dissipation is evidenced by a rapid population growth in the initially vacant gate well. The transport dynamics are shown to depend strongly on a feedback parameter determined by the relative heights of the two barriers forming the gate region. For a range of feedback parameter values, experiments establish that the gate atoms develop a larger chemical potential and lower temperature than those in the source.https://doi.org/10.1088/1367-2630/18/2/025010atomtronicstransistortransport dynamicsfinite temperature |
| spellingShingle | Seth C Caliga Cameron J E Straatsma Dana Z Anderson Transport dynamics of ultracold atoms in a triple-well transistor-like potential New Journal of Physics atomtronics transistor transport dynamics finite temperature |
| title | Transport dynamics of ultracold atoms in a triple-well transistor-like potential |
| title_full | Transport dynamics of ultracold atoms in a triple-well transistor-like potential |
| title_fullStr | Transport dynamics of ultracold atoms in a triple-well transistor-like potential |
| title_full_unstemmed | Transport dynamics of ultracold atoms in a triple-well transistor-like potential |
| title_short | Transport dynamics of ultracold atoms in a triple-well transistor-like potential |
| title_sort | transport dynamics of ultracold atoms in a triple well transistor like potential |
| topic | atomtronics transistor transport dynamics finite temperature |
| url | https://doi.org/10.1088/1367-2630/18/2/025010 |
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