Bulletin of the American Physical Society
78th Annual Meeting of the Southeastern Section of the APS
Volume 56, Number 9
Wednesday–Saturday, October 19–22, 2011; Roanoke, Virginia
Session BA: Strings: Theory and Application |
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Chair: Leo Piilonen, Virginia Polytechnic Institute and State University Room: Crystal Ballroom A |
Thursday, October 20, 2011 8:30AM - 9:00AM |
BA.00001: Recent developments in four-dimensional supergravity Invited Speaker: I will summarize recent work on gauge theories in supergravity, specifically concerning the `Fayet-Iliopoulos' parameter. In rigidly supersymmetric gauge theories, this parameter also appears and can vary continuously. In supergravity old lore held that it should always vanish. I will discuss recent developments showing that in fact it can be nonzero, but is quantized, and will explore various ramifications of that result. [Preview Abstract] |
Thursday, October 20, 2011 9:00AM - 9:30AM |
BA.00002: Mathematical Surprises From Off-Shell SUSY Representation Theory Invited Speaker: This presentation reports on the effort to create a mathematical theory for off-shell supersymmetry that is analogous to the construction or roots and weights for Lie groups. The construction begins with the introduction of Adinkras, diagram analogous to weight space representation for quarks. Recent surprising results are discussed. [Preview Abstract] |
Thursday, October 20, 2011 9:30AM - 10:00AM |
BA.00003: Real-time finite temperature AdS/CFT and jet quenching Invited Speaker: I will introduce a simple prescription for computing real-time finite temperature $n$-point functions in AdS/CFT. When used to compute the stopping distance of a highly energetic jet moving through strongly coupled $N=4$ superYang-Mills plasma, the typical jet stopping distance scales with energy as $(EL)^{1/4}$, where $L$ is the size of the region where the jet was created. [Preview Abstract] |
Thursday, October 20, 2011 10:00AM - 10:30AM |
BA.00004: Holographic superconductors at low temperatures Invited Speaker: Holographic models of superconductivity offer a promising approach to the understanding of strongly coupled superconductors. Their properties are derived from non-linear field equations which are hard to solve, especially at low temperatures. I will discuss analytic tools that generate solutions down to zero temperature. This exploration is important for the understanding of the ground state of these systems. I will present results in the probe limit (vanishing chemical potential $\mu$), as well as the extremal limit (small critical temperature to chemical potential ($T_c/\mu$) ratio). [Preview Abstract] |
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