Date of Award

Spring 1-1-2017

Document Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

First Advisor

Eric A. Cornell

Second Advisor

Jun Ye

Third Advisor

John Bohn

Fourth Advisor

Jose P. D'Incao

Fifth Advisor

Carl Lineberger

Abstract

The progression from two- through few- to many-body physics is an open and interesting question. Experiments that can test these theories must walk the fine line between cultivating a rich many-body system, yet preventing the interactions from completely destroying the system before study. This thesis explores the two- and few-body interactions present in a resonantly interacting degenerate Bose gas. We explore these interactions as a function of the density of the initial Bose-Einstein condensate. We use loss rates to characterize the interactions and find that a significant portion of the perceived atomic loss is from sweeping the atoms into loosely bound molecules.The decay dynamics identify a molecule mixture of both Feshbach dimers and Efimov trimers

Included in

Physics Commons

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