Elliptic flow in a strongly interacting normal Bose gas
We study the anisotropic, elliptic expansion of a thermal atomic Bose gas released from an anisotropic trapping potential, for a wide range of interaction strengths across a Feshbach resonance. We show that this hydrodynamic phenomenon is for all interaction strengths fully described by a microscopi...
| Main Authors: | , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2018
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| Online Access: | http://hdl.handle.net/1721.1/116850 |
| _version_ | 1826218132625162240 |
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| author | Man, Jay Lopes, Raphael Christodoulou, Panagiotis Schmitt, Julian Sohmen, Maximilian Navon, Nir Smith, Robert P. Hadzibabic, Zoran Fletcher, Richard J |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Man, Jay Lopes, Raphael Christodoulou, Panagiotis Schmitt, Julian Sohmen, Maximilian Navon, Nir Smith, Robert P. Hadzibabic, Zoran Fletcher, Richard J |
| author_sort | Man, Jay |
| collection | MIT |
| description | We study the anisotropic, elliptic expansion of a thermal atomic Bose gas released from an anisotropic trapping potential, for a wide range of interaction strengths across a Feshbach resonance. We show that this hydrodynamic phenomenon is for all interaction strengths fully described by a microscopic kinetic model with no free parameters. The success of this description crucially relies on taking into account the reduced thermalizing power of elastic collisions in a strongly interacting gas, for which we derive an analytical theory. We also perform time-resolved measurements that directly reveal the dynamics of the energy transfer between the different expansion axes. |
| first_indexed | 2024-09-23T17:14:41Z |
| format | Article |
| id | mit-1721.1/116850 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T17:14:41Z |
| publishDate | 2018 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/1168502022-09-30T00:40:57Z Elliptic flow in a strongly interacting normal Bose gas Man, Jay Lopes, Raphael Christodoulou, Panagiotis Schmitt, Julian Sohmen, Maximilian Navon, Nir Smith, Robert P. Hadzibabic, Zoran Fletcher, Richard J Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Research Laboratory of Electronics MIT-Harvard Center for Ultracold Atoms Fletcher, Richard J We study the anisotropic, elliptic expansion of a thermal atomic Bose gas released from an anisotropic trapping potential, for a wide range of interaction strengths across a Feshbach resonance. We show that this hydrodynamic phenomenon is for all interaction strengths fully described by a microscopic kinetic model with no free parameters. The success of this description crucially relies on taking into account the reduced thermalizing power of elastic collisions in a strongly interacting gas, for which we derive an analytical theory. We also perform time-resolved measurements that directly reveal the dynamics of the energy transfer between the different expansion axes. 2018-07-09T14:08:43Z 2018-07-09T14:08:43Z 2018-07 2018-03 2018-07-05T18:00:16Z Article http://purl.org/eprint/type/JournalArticle 2469-9926 2469-9934 http://hdl.handle.net/1721.1/116850 Fletcher, Richard J. et al. "Elliptic flow in a strongly interacting normal Bose gas." Physical Review A 98, 1 (July 2018): 011601(R) © 2018 American Physical Society en http://dx.doi.org/10.1103/PhysRevA.98.011601 Physical Review A 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. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Man, Jay Lopes, Raphael Christodoulou, Panagiotis Schmitt, Julian Sohmen, Maximilian Navon, Nir Smith, Robert P. Hadzibabic, Zoran Fletcher, Richard J Elliptic flow in a strongly interacting normal Bose gas |
| title | Elliptic flow in a strongly interacting normal Bose gas |
| title_full | Elliptic flow in a strongly interacting normal Bose gas |
| title_fullStr | Elliptic flow in a strongly interacting normal Bose gas |
| title_full_unstemmed | Elliptic flow in a strongly interacting normal Bose gas |
| title_short | Elliptic flow in a strongly interacting normal Bose gas |
| title_sort | elliptic flow in a strongly interacting normal bose gas |
| url | http://hdl.handle.net/1721.1/116850 |
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