Feshbach resonances and collapsing Bose-Einstein condensates
J. N. Milstein, C. Menotti, and M. J. Holland
TL;DR
This paper explores how Feshbach resonances influence the stability and dynamics of Bose-Einstein condensates, particularly leading to atom burst phenomena observed in experiments, using a resonance effective field theory.
Contribution
It introduces a resonance effective field theory to analyze the dynamical instability and atom burst phenomena in Bose-Einstein condensates near Feshbach resonances.
Findings
Resonance scattering states can cause pairing instabilities in BECs.
The theory explains the energy of burst atoms observed experimentally.
Resonance effects are significant in the dynamics of collapsing BECs.
Abstract
We investigate the quantum state of burst atoms seen in the recent Rb-85 experiments at JILA. We show that the presence of a resonance scattering state can lead to a pairing instability generating an outflow of atoms with energy comparable to that observed. A resonance effective field theory is used to study this dynamical process in an inhomogeneous system with spherical symmetry.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.