John Scott’s Comps Presentation
Wednesday, February 21st
3:10 pm in Olin 141
Josephson Junctions: From Physics to Functions
Josephson Junctions are a fundamental component of superconducting circuits, and display macroscopic quantum effects which cannot be reproduced in semiconductor-based electronics. We’ll examine the fundamental physics of superconductors, touching on both the Ginzburg-Landau macroscopic theory of superconductivity and the microscopic Bardeen-Cooper-Schrieffer theory, and how they motivate the Josephson relations. Next we treat the Josephson relations themselves, both in the context of fundamental physics and as applied electronics, examining their behavior as current sources, nonlinear inductors, and magnetic flux devices. We then conclude by examining several applications of Josephson junctions, especially the properties of the DC Superconducting Quantum Interference Device as an ultra-high resolution magnetometer.
Max Mattessich’s Comps Presentation
Friday, February 23rd
3:30 pm in Olin 141
Henry Rook’s Comps Presentation
Monday, February 26th
8:30 am in Olin 141