Loading...
Fractal universality in near-threshold magnetic lanthanide dimers
Makrides, C Li, M Tiesinga, E Kotochigova, S
Makrides, C
Li, M
Tiesinga, E
Kotochigova, S
Citations
Altmetric:
Genre
Journal Article
Date
2018-02-01
Advisor
Committee member
Group
Department
Permanent link to this record
Collections
Research Projects
Organizational Units
Journal Issue
DOI
10.1126/sciadv.aap8308
Abstract
The Authors Copyright © 2018. Ergodic quantum systems are often quite alike, whereas nonergodic, fractal systems are unique and display characteristic properties. We explore one of these fractal systems, weakly bound dysprosium lanthanide molecules, in an external magnetic field. As recently shown, colliding ultracold magnetic dysprosium atoms display a soft chaotic behavior with a small degree of disorder. We broaden this classification by investigating the generalized inverse participation ratio and fractal dimensions for large sets of molecular wave functions. Our exact close-coupling simulations reveal a dynamic phase transition from partially localized States to totally delocalized States and universality in its distribution by increasing the magnetic field strength to only a hundred Gauss (or 10 mT). Finally, we prove the existence of nonergodic delocalized phase in the system and explain the violation of ergodicity by strong coupling between near-threshold molecular States and the nearby continuum.
Description
Citation
Citation to related work
American Association for the Advancement of Science (AAAS)
Has part
Science Advances
ADA compliance
For Americans with Disabilities Act (ADA) accommodation, including help with reading this content, please contact scholarshare@temple.edu