Loyola University Chicago

Department of Physics

Physics Seminars

Here is a list of upcoming seminars in the Physics Department

September 29th, 2017

11:30AM CS-202

Speaker: Alexandra Spaulding

 

Exploring Different Types of Non-Signaling Correlations in Mermin’s Game

Abstract:Non-signaling correlations are beginning to become essential in advancing technology.  In this research,  a different type of non-signaling correlation is explored and is used to explain the discrepancy between local realism and quantum mechanics.  The new idea in my research is that there is another method, namely a PR box, that we can use to win Mermin's game, something that only special relativity has been shown to accomplish.  To show this, we explore the outcomes of different mappings and expand these to create a system with multiple PR boxes.  In the end, two PR boxes are shown to be enough to win Mermin’s game.  We expect this new finding to affect further research in different non-signaling correlations including the field of quantum computing.

Speaker: Andrew Fischer

“Visualizer Framework for the ATLAS ITK Phase Two upgrade & Top Mass Reconstruction for Pythia8 Tune Analysis”

Abstract: This talk discusses a summer project done via SULI at Argonne National Lab in which the ITK Visualizer was developed and a study of particle collision simulator tunes was conducted. The ITK Visualizer is a versatile and easy to use framework for visualization of models created for the new ATLAS ITK Pixel detector and the upgrade that it is undergoing in the next decade. The framework parses XML files previously used for simulation and optimization of the ITK geometry and generates ROOT and JSON files for viewing three dimensional models of the detector as well as determining active silicon detecting surface area. A lower priority part of this summer project was the creation of a top quark mass reconstruction program for semileptonic ttbar decays. This top mass re-construction was then used as a benchmark in the analysis of Pythia8 Monte Carlo event generator tunes, or parameter sets. At low center mass energies, 380 GeV, no statistically significant deviation was found among tunes. However, at 3 TeV, the Montull tune was found to have slight variations in particle multiplicity and top mass reconstruction from the default Monash tune.