Decoherence of Matter-Wave Breathers in Lithium Bose Einstein-Condensates
| dc.contributor.advisor | Hulet, Randall G | en_US |
| dc.creator | Jin, Eva | en_US |
| dc.date.accessioned | 2024-08-30T16:32:59Z | en_US |
| dc.date.available | 2024-08-30T16:32:59Z | en_US |
| dc.date.created | 2024-08 | en_US |
| dc.date.issued | 2024-07-09 | en_US |
| dc.date.submitted | August 2024 | en_US |
| dc.date.updated | 2024-08-30T16:32:59Z | en_US |
| dc.description.abstract | The experimental work presented in this thesis studies and characterizes decoherence of excited matter-wave solitons, known as breathers, in neutral lithium-7 BECs. Motivated by the rich pool of theoretical predictions for beyond mean-field physics, and recent work in our lab which experimentally realized the production of breathers, we study the lifetime and decay of breathers in a one-dimensional (1D) wave guide. We report measurements of decoherence and dissociation of breathers in a quasi- 1D geometry, and attribute the dissociation features to three-body loss by comparing against numerical results from the 1D Gross-Pitaevskii (GP) simulations in the mean- field approximation. We find that in the low atomic density regime for breathers, breathers no longer dissociate and deviate from the GP simulation results. In this regime, the breather damps out and embodies signatures of relaxation associated with beyond mean-field number fluctuations. | en_US |
| dc.format.mimetype | application/pdf | en_US |
| dc.identifier.citation | Jin, Eva. Decoherence of Matter-Wave Breathers in Lithium Bose Einstein-Condensates. (2024). PhD diss., Rice University. https://hdl.handle.net/1911/117791 | en_US |
| dc.identifier.uri | https://hdl.handle.net/1911/117791 | en_US |
| dc.language.iso | eng | en_US |
| dc.rights | Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder. | en_US |
| dc.subject | Solitons | en_US |
| dc.subject | Bose Einstein condensates | en_US |
| dc.subject | Decoherence m | en_US |
| dc.title | Decoherence of Matter-Wave Breathers in Lithium Bose Einstein-Condensates | en_US |
| dc.type | Thesis | en_US |
| dc.type.material | Text | en_US |
| thesis.degree.department | Physics and Astronomy | en_US |
| thesis.degree.discipline | Natural Sciences | en_US |
| thesis.degree.grantor | Rice University | en_US |
| thesis.degree.level | Doctoral | en_US |
| thesis.degree.name | Doctor of Philosophy | en_US |
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