JILA Auditorium

Abstract: Ultracold polar molecules, which have complex internal state structures and dipole moments tunable with external electric fields, are a promising system for studying many-body physics. Producing degenerate molecules and observing quantum effects has been prevented by high initial temperatures and rapid loss from chemical reactions. In this talk, I describe the creation of degenerate potassium-rubidium (KRb) molecules by pairing in an atomic mixture.

The CUbit-JILA Women in Quantum Panel will be an in-person event and filmed to be posted on the JILA YouTube channel after the event. With speakers like JILA Fellow Ana Maria Rey and representatives from ColdQuanta, the panel will discuss careers for women in quantum, as well as what it is like to be a female in this industry. Cookies will be provided at the event, followed by a happy hour at the Sink. 

Featured speakers:

Zoom: https://cuboulder.zoom.us/j/95102593637

Meeting ID: 951 0259 3637

Please email Kim Monteleone (kim.monteleone@jila.colorado.edu) for the pass code to attend via Zoom.

This seminar is postponed to an as yet undetermined date.

Contact chemistry@colorado.edu for registration and connecting if you would like to attend online. 

Abstract: Molecules, polymers, and nanocrystals can form the active layer in electronic devices such as photovoltaics and light-emitting diodes. Their electronic structure and excited state dynamics dictate their function and suitability for these applications. Transient absorption (TA) spectroscopy is used to measure these properties, and has provided remarkable insights into the behavior and function of electronic materials.

Abstract: Inspired by atmospheric measurements, which have established that atmospheric chemistry occurs in many phases and at interfaces, my group explored the unique reaction environments presented by planetary atmospheres. In this presentation, the special morphological and chemical properties of organic films on aqueous solutions will be discussed with reference to atmospheric aerosols, sea surface microlayers, cloud and fog droplets.

Josephson junctions driven by RF excitation can exhibit phase locking - the inverse AC Josephson effect.  This synchronization gives rise to quantized DC voltage plateaus called Shapiro steps that are the basis of modern voltage standards.  While the nonlinear dynamics of conventional Josephson junctions were an intense area of research in the 1980s, this measurement technique has reemerged in the past decade in materials science as a probe for topological states of matter.  In this talk, I will present measurements of graphene Josephson junctions which s