Coherence of a bosonic Josephson junction

Author

Brolis, Alessandro

Available versions

Abstract

This research provides deeper understanding in one of quantum physics most fascinating phenomena: superfluidity. By cooling thousands of atoms to the coldest temperature in the universe we were able to explore a regime where particles behaves like waves and exhibit waves peculiar property of possessing a phase and thus the ability to interfere. Precise usage of radio-frequency fields coupled to the atoms allowed us to explore conditions under which the interaction between particles creates a coherent system, one that gives the same interference pattern every time is measured, and conditions where the interference pattern changes randomly after every measurement, thus making the system incoherent.

Publication year

2017

Thesis supervisor

Andrei Sidorov

Publication type

Thesis (PhD)

Copyright

Copyright © 2017 Alessandro Brolis.

Thesis note

Presented in fulllment of the requirements of the degree of Doctor of Philosophy, Swinburne University of Technology, 2017.

Details