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Formation, dynamics, and decay of qu...

Neely, Tyler William.

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Formation, dynamics, and decay of quantized vortices in Bose-Einstein condensates: Elements of quantum turbulence.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Formation, dynamics, and decay of quantized vortices in Bose-Einstein condensates: Elements of quantum turbulence./
作者:	Neely, Tyler William.
面頁冊數:	153 p.
附註:	Source: Dissertation Abstracts International, Volume: 71-05, Section: B, page: 3101.
Contained By:	Dissertation Abstracts International71-05B.
標題:	Physics, Quantum. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3402067
ISBN:	9781109736786

Formation, dynamics, and decay of quantized vortices in Bose-Einstein condensates: Elements of quantum turbulence.
Neely, Tyler William.

Formation, dynamics, and decay of quantized vortices in Bose-Einstein condensates: Elements of quantum turbulence. - 153 p.

Source: Dissertation Abstracts International, Volume: 71-05, Section: B, page: 3101.

Thesis (Ph.D.)--The University of Arizona, 2010.

Turbulence in classical fluids has been the subject of scientific study for centuries, yet there is still no complete general theory of classical turbulence connecting microscopic physics to macroscopic fluid flows, and this remains one of the open problems in physics. In contrast, the phenomenon of quantum turbulence in superfluids has well-defined theoretical descriptions, based on first principles and microscopic physics, and represents a realm of physics that can connect the classical and quantum worlds. Studies of quantum turbulence may thus be viewed as a path for progress on the long-standing problem of turbulence.

ISBN: 9781109736786Subjects--Topical Terms:

1671062
Physics, Quantum.

Formation, dynamics, and decay of quantized vortices in Bose-Einstein condensates: Elements of quantum turbulence.
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245 1 0 $a Formation, dynamics, and decay of quantized vortices in Bose-Einstein condensates: Elements of quantum turbulence.
300 $a 153 p.
500 $a Source: Dissertation Abstracts International, Volume: 71-05, Section: B, page: 3101.
500 $a Adviser: Brian P. Anderson.
502 $a Thesis (Ph.D.)--The University of Arizona, 2010.
520 $a Turbulence in classical fluids has been the subject of scientific study for centuries, yet there is still no complete general theory of classical turbulence connecting microscopic physics to macroscopic fluid flows, and this remains one of the open problems in physics. In contrast, the phenomenon of quantum turbulence in superfluids has well-defined theoretical descriptions, based on first principles and microscopic physics, and represents a realm of physics that can connect the classical and quantum worlds. Studies of quantum turbulence may thus be viewed as a path for progress on the long-standing problem of turbulence.
520 $a A dilute-gas Bose-Einstein condensate (BEC) is, in most cases, a superfluid that supports quantized vortices, the primary structural elements of quantum turbulence. BECs are particularly convenient systems for the study of vortices, as standard techniques allow the microscopic structure and dynamics of the vortices to be investigated. Vortices in BECs can be created and manipulated using a variety of techniques, hence BECs are potentially powerful systems for the microscopic study of quantum turbulence.
520 $a This dissertation focuses on quantized vortices in BECs, specifically experimental and numerical studies of their formation, dynamics, and decay, in an effort to understand the microscopic nature of vortices as elements of quantum turbulence. Four main experiments were performed, and are described in the main chapters of this dissertation, after introductions to vortices, experimental methods, and turbulence are presented. These experiments were aimed at understanding various aspects of how vortices are created and behave in a superfluid system. They involved vortex dipole nucleation in the breakdown of superfluidity, persistent current generation from a turbulent state in the presence of energy dissipation, decay of angular momentum of a BEC due to trapping potential impurities, and exploration of the spontaneous formation of vortices during the BEC phase transition. These experiments represent progress towards enhanced understanding of the formation, dynamics, and decay of vortices in BECs and thus may be foundational to more general studies of quantum turbulence in superfluids.
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790 1 0 $a Wright, Ewan $e committee member
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792 $a 2010
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