Observation of Weak Collapse in a Bose-Einstein Condensate
Christoph Eigen, Alexander L. Gaunt, Aziza Suleymanzade +3 more
We study the collapse of an attractive atomic Bose-Einstein condensate prepared in the uniform potential of an optical-box trap.We characterize the critical point for collapse and the collapse dynamics, observing universal behavior in agreement with theoretical expectations.Most importantly, we observe a clear experimental signature of the counterintuitive weak collapse, namely, that making the system more unstable can result in a smaller particle loss.We experimentally determine the scaling laws that govern the weak-collapse atom loss, providing a benchmark for the general theories of nonlinear wave phenomena.
arXiv:1609.00352•Physical Review X•Dec 19, 2016•34 citations