# Particle Physics and Quantum Field Theory

## From the Adinkras of Supersymmetry to the Music of Arnold Schoenberg

The concept of supersymmetry, though never observed in Nature, has been one of the primary drivers of investigations in theoretical physics for several decades. Through all of this time, there have remained questions that are unsolved. This presentation will describe how looking at such questions one can be led to the 'Dodecaphony Technique' of Austrian composer Schoenberg.

Jim Gates is a theoretical physicist known for work on supersymmetry, supergravity and superstring theory. He is currently a Professor of Physics at the University of Maryland, College Park, a University of Maryland Regents Professor and serves on President Barack Obama’s Council of Advisors on Science and Technology.

Gates was nominated by the US Department of Energy to present his work and career to middle and high school students in October 2010. He is on the board of trustees of Society for Science & the Public, he was a Martin Luther King Jr. Visiting Scholar at MIT (2010-11) and was a Residential Scholar at MIT’s Simmons Hall. On February 1, 2013, Gates received the National Medal of Science.

## Gauge Theory and Khovanov Homology

After reviewing ordinary finite-dimensional Morse theory, I will explain how Morse generalized Morse theory to loop spaces, and how Floer generalized it to gauge theory on a three-manifold. Then I will describe an analog of Floer cohomology with the gauge group taken to be a complex Lie group (rather than a compact group as assumed by Floer), and how this is expected to be related to the Jones polynomial of knots and Khovanov homology.

## A Functional Integral Representation for Many Boson Systems

This is the 2007 CRM-Fields-PIMS prize lecture by Joel Feldman, with citation by David Brydges.

## String Theory Compactification with/without Torsion

Topics:

• Geometry and Holomony

• Supersymmetry, Spinors, and Calabi-Yau

• Flux and Backreaction

• Energetics of Heterotic Flux Compactification

• Strominger System and Heterotic Flux as a Torsion

• A Supersymmetric Solution to Heterotic Flux Compactification

• Global Issues: Index Counting, Smoothness, etc