Past Events

Coffee and cookies before the talk at 3:30 pm.

This colloquium has been cancelled

Globally, women earn 81 cents for every dollar that men earn in the workforce. On top of income disparity, some women, often mid-career, feel they have to make a choice between family and career. There are many discussions on “leaning in,” “having it all,” along with debates that some of these frameworks create even more unrealistic expectations for women.

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.

Abstract: The difficulty of solving a problem is often input dependent. For example, if you are searching an unordered list for an item, it is easier to find one if there are multiple copies. Quantum algorithms should also do better on easier inputs, but prior work for an important class of query algorithms only gives an improvement if you know ahead of time that you have an easier input. We designed an algorithm that matches the complexity (up to log factors) of the prior algorithm, but without knowing the difficulty of the input in advance.

Abstract: Nowadays, the duration of laser pulses can be as short as tens of attoseconds (an attosecond is one quintillionth of a second), In my talk I will discuss some of the basic principles behind the generation and application of attosecond laser pulses and the theoretical challenges to study the interactions of ultrashort laser pulses with matter.

Zoom info will be sent out in the JILA email announcement.

JILA colloquia are available on a YouTube playlist

Abstract: In this colloquium, Professor Julie Posselt will share findings from her research about trajectories toward diversity, equity, and inclusion among  organizations in the physical sciences. Drawing from insights first proposed by quantum theorists, she will present organizational equity efforts from the standpoint of complex systems, and offer practical insights for those who working to improve representation and culture.

YouTube URL: https://youtu.be/ETItVUgFy78

Seminar Abstract:

(Co-authors: Brian Toon, Melinda Kahre, Olivia Pierpaoli)

Abstract:
The standard cold dark matter plus cosmological constant model predicts that galaxies form within dark-matter haloes, and that low-mass galaxies are more dark-matter dominated than massive ones. The unexpected discovery of two low-mass galaxies lacking dark matter immediately provoked concerns about the standard cosmology and ignited explorations of alternatives, including self-interacting dark matter and modified gravity.

Please click link to preregister for this event.
https://forms.gle/CpVPDtoEQaDtNBxg7

Abstract: At low Reynolds numbers, the wind flow in the wake of a single wind turbine is generally not turbulent. However, turbines in wind farms affect each other’s wakes so that a turbulent flow can arise. In the present work, an analogue of this effect for the massless charge carrier flow around obstacles in graphene is outlined.

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.

Abstract: