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Heat Death of an Ultracold Dipolar Gas /

Wang, Reuben R. W.,

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Heat Death of an Ultracold Dipolar Gas /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Heat Death of an Ultracold Dipolar Gas // Reuben R. W Wang.
Author:	Wang, Reuben R. W.,
Description:	1 electronic resource (164 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 85-11, Section: B.
Contained By:	Dissertations Abstracts International85-11B.
Subject:	Theoretical physics. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31142130
ISBN:	9798382717005

Heat Death of an Ultracold Dipolar Gas /
Wang, Reuben R. W.,

Heat Death of an Ultracold Dipolar Gas /Reuben R. W Wang. - 1 electronic resource (164 pages)

Source: Dissertations Abstracts International, Volume: 85-11, Section: B.

Optically trapping bulk gases of atoms and molecules at sub-microKelvin temperatures has become commonplace in several labs around the world. In particular, realizing low temperature samples of dipolar atoms and diatomic molecules has garnered great interest from the ultracold community, due to their long-range and anisotropic nature. At temperatures not yet low enough to achieve macroscopic quantum degeneracy, the gas constituents move about more or less classically, but experience collisions that can only be described accurately with quantum mechanics. By aligning these dipoles with an external field, collisions inherit highly anisotropic cross sections from their dipole-dipole interactions, leading to a wealth of tunable anisotropic collective dynamics. I focus on characterizing anisotropic thermalization dynamics, which bears importance in many experimental applications. In fact, progressing in parallel with my graduate work has been exciting experiments with ultracold dipolar atoms and molecules. I tell the story of several collaborations in which my work was used to determine the scattering length of erbium atoms, characterize universal dipolar scattering, and open opportunities for optimal evaporative cooling of molecular gases. This thesis lays out the development of several theoretical tools for investigating the relaxation of a nondegenerate dipolar gas, tracking its intricate journey to an eventual heat death.

English

ISBN: 9798382717005Subjects--Topical Terms:

2144760
Theoretical physics.
Subjects--Index Terms:

Collective physics

Heat Death of an Ultracold Dipolar Gas /
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500 $a Advisors: Bohn, John L. Committee members: Becker, Andreas; Michl, Josef; Rey, Ana Maria; Ye, Jun.
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520 $a Optically trapping bulk gases of atoms and molecules at sub-microKelvin temperatures has become commonplace in several labs around the world. In particular, realizing low temperature samples of dipolar atoms and diatomic molecules has garnered great interest from the ultracold community, due to their long-range and anisotropic nature. At temperatures not yet low enough to achieve macroscopic quantum degeneracy, the gas constituents move about more or less classically, but experience collisions that can only be described accurately with quantum mechanics. By aligning these dipoles with an external field, collisions inherit highly anisotropic cross sections from their dipole-dipole interactions, leading to a wealth of tunable anisotropic collective dynamics. I focus on characterizing anisotropic thermalization dynamics, which bears importance in many experimental applications. In fact, progressing in parallel with my graduate work has been exciting experiments with ultracold dipolar atoms and molecules. I tell the story of several collaborations in which my work was used to determine the scattering length of erbium atoms, characterize universal dipolar scattering, and open opportunities for optimal evaporative cooling of molecular gases. This thesis lays out the development of several theoretical tools for investigating the relaxation of a nondegenerate dipolar gas, tracking its intricate journey to an eventual heat death.
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650 4 $a Atomic physics. $3 3173870
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653 $a Collective physics
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653 $a Hydrodynamics
653 $a Monte Carlo simulations
653 $a Quantum scattering
653 $a Ultracold gases
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690 $a 0599
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