Physical Chemistry Seminar – Prof. Kang-Kuen Ni, Harvard University
November 3 @ 11:00 am - 12:00 pm
Prof. Kang-Kuen Ni
Physical Chemistry, Seminar
“Probing and controlling chemical reactions below 1 micro-Kelvin”
Advances in quantum manipulation of molecules bring unique opportunities, including the use of molecules to search for new physics, harnessing molecular resources for quantum engineering, and exploring chemical reactions in the ultra-low temperature regime. In this talk, I focus on the latter topic where we work toward a detailed microscopic picture of molecules transforming from one species to another and reveal several surprises along the way. By preparing quantum-state-selected KRb molecules at a temperature of 500 nK, we observed reactions proceeding through a long-lived intermediate, which provides a handle to steer with light the reaction pathway away from its natural course. The long lifetime of the intermediate is expected to lead to a statistically distributed reaction outcome where all channels are explored. We developed quantum state mapping of correlated product-pairs to precisely benchmark statistical theory.
FOR MORE INFORMATION, CONTACT: ALISA GRADNEY AT AGRADNEY@WISC.EDU