Graduate Thesis Or Dissertation

 

Implosions As A Probe for Fluctuations in Bose-Einstein Condensates Public Deposited

Downloadable Content

Download PDF
https://scholar.colorado.edu/concern/graduate_thesis_or_dissertations/v118rf80j
Abstract
  • Quantum and thermal effects play important roles in the fluctuations of ultracold Bose gases, yet the fluctuations remain difficult to probe experimentally in 3D bulk systems. We seek to amplify these fluctuations via a quench from positive to negative scattering length. Following such a quench, initial fluctuations in the gas, whether seeded by a lattice potential, thermal fluctuations, or quantum fluctuations, are amplified on a time-scale which is fast compared to the bulk collapseof the cloud. We perform experiments on clouds seeded with an initial, well-understood density perturbation due to an optical lattice and on clouds with no externally imposed fluctuations. We compare our observations to a variety of theoretical models, which predict the static structure factor as a function of time and momentum in the collapsing gas.

Creator
Date Issued
  • 2022-07-25
Academic Affiliation
Advisor
Committee Member
Degree Grantor
Commencement Year
Subject
Publisher
Last Modified
  • 2022-09-17
Resource Type
Rights Statement
Language

Relationships

Items