JILA 10th Floor - Foothills Room

Towards Automated Information Extraction from High Resolution Transmission Electron Microscopy Images

Transmission electron microscopy (TEM) is the characterization method of choice to observe the atomic-scale and microstructural local features within materials that play a critical role in material performance. However, a bottleneck exists between image acquisition and the extraction of relevant information that can be used in a materials design feedback loop. While image analysis of individual images can easily identify regions of interest and determine whether they contain defects, it is prohibitively time-consuming to manually perform this analysis on large numbers of images.

The Road Less Traveled: Resonant Bose-Einstein Condensates via a Hyperspherical Lowest-Order Constrained Variational Approach

In this work, we study the ground state properties of a system of $N$ harmonically trapped bosons of mass $m$ interacting with two-body contact interactions, from small to large scattering lengths.  This is accomplished in a hyperspherical coordinate system that is flexible enough to describe both the overall scale  of the gas and two-body correlations.  By adapting the lowest-order constrained variational (LOCV) method, we are able to semi-quantitatively attain Bose-Einstein condensate ground state energies even for gases with infinite scattering length.

Searching for the fastest stars in our Galaxy

The recent second data release from the ESA satellite Gaia gives us the opportunity to search for extremely high velocity stars in the largest stellar catalogue ever produced. In this talk I will focus on 
the high velocity tail of the distribution of total velocities, to search for objects whose velocity exceeds the escape speed from the Milky Way: hypervelocity stars and hyper-runaway stars.