Mar 15, 2018 4:00 pm - Nielsen Hall 170 - Colloquium
Cheng Chin - University of Chicago
Bose fireworks

Experiments frequently come with surprises. In this talk, I will describe a serendipitous discovery of Bose fireworks, the sudden emission of many narrow jets of matterwaves from Bose-Einstein condensates with oscillating interaction strength. This structure originates from a collective scattering of atoms in the condensate, seeded by quantum fluctuations and amplified by bosonic stimulation. The process is the matterwave version of superradiance, and results in an intriguing di-jet pattern resembling those observed in high-energy collisions of heavy ions.