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| Self-bound droplets of a dilute gas |
| 2017-04-26
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| Institute of Theoretical Physics | | Chinese Academy of Sciences | | Key Laboratory of Theoretical Physics | | Seminar | | Title 题目 | Self-bound droplets of a dilute gas | | Speaker 报告人 | Prof. Blair Blakie | | Affiliation 所在单位 | University of Otago, New Zealand | | Date 日期 | 4:00pm, Wednesday, Apr. 26, 2017 | | Venue 地点 | Room 6420 ITP New Building | | Abstract 摘要 | Recent experiments with Bose-Einstein condensates of dysprosium and erbium atoms have observed the formation of droplets that can preserve their form, even in the absence of any external confinement [1]. These droplets occur in the regime where the long-ranged dipole-dipole interaction between the atoms dominates over short-ranged contact interaction. In this regime meanfield theory predicts that the condensate is unstable to collapse. However, as the collapse begins, and the density increases, the quantum fluctuation corrections become important and stabilize the system as a finite sized droplet. I will discuss our recent theoretical work predicting the existent of self-bound droplets [2] and their excitations [3].
[1] M. Schmitt, M. Wenzel, F. Böttcher, I. Ferrier-Barbut, and T. Pfau, Nature 539, 259 (2016).
[2] D. Baillie, R. M. Wilson, R. N. Bisset, and P. B. Blakie, Phys. Rev. A 94, 021602(R) (2016).
[3] D. Baillie, R. M. Wilson, P. B. Blakie, arXiv:1703.07927 | | Contact person 所内联系人 | Su Yi |
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