자료유형  

 학위논문

Control Number  

0017160648

International Standard Book Number  

9798382717005

Dewey Decimal Classification Number  

530.1

Main Entry-Personal Name  

Wang, Reuben R. W.

Publication, Distribution, etc. (Imprint  

[S.l.] : University of Colorado at Boulder., 2024

Publication, Distribution, etc. (Imprint  

Ann Arbor : ProQuest Dissertations & Theses, 2024

Physical Description  

164 p.

General Note  

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

General Note  

Advisor: Bohn, John L.

Dissertation Note  

Thesis (Ph.D.)--University of Colorado at Boulder, 2024.

Summary, Etc.  

요약Optically 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.

Subject Added Entry-Topical Term  

Theoretical physics.

Subject Added Entry-Topical Term  

Atomic physics.

Subject Added Entry-Topical Term  

Molecular physics.

Subject Added Entry-Topical Term  

Physics.

Subject Added Entry-Topical Term  

Quantum physics.

Subject Added Entry-Topical Term  

Mechanics.

Index Term-Uncontrolled  

Collective physics

Index Term-Uncontrolled  

Dipolar gases

Index Term-Uncontrolled  

Hydrodynamics

Index Term-Uncontrolled  

Monte Carlo simulations

Index Term-Uncontrolled  

Quantum scattering

Index Term-Uncontrolled  

Ultracold gases

Added Entry-Corporate Name  

University of Colorado at Boulder Physics

Host Item Entry  

Dissertations Abstracts International. 85-11B.

Electronic Location and Access  

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Control Number  

joongbu:658065