Faculty of Science

Dr. Klaus von Klitzing, Nobel Laureate, at the Laird lecture

Dr. Klaus von Klitzing, who won the 1985 Nobel Prize in Physics, will be at Western to speak at the Elizabeth Laird Memorial Lecture about “Physics and Application of Quantum Hall Effect.”

The talk will occur on Thursday, 19th September 2013 at 5:30 p.m. in the Paul Davenport Theatre (Talbot College).

The abstract reads, “Basic research on the most important device in microelectronics, a silicon field effect transistor, led in 1980 to the discovery of the Quantum Hall Effect (QHE). Electrical measurements on such a device demonstrated, that a new type of electrical resistor can be realized, a resistor with a well-defined value which depends exclusively on fundamental constants. Today, the word QHE is a synonym for the more general topic of electrons in strong magnetic fields with connections not only to semiconductor physics but also to other research areas like astrophysics (edge states in gravity and black hole physics), high energy physics (quantum Hall quarks), new fields in solid state physics (topological quantum computation and topological insulator) and metrology (fundamental constants). This broad interest in QHE physics explains the high publication rate in this field with more than one publication per day during the past 20 years.

The talk starts with a historical review and will focus on two topics, the application of the QHE in connection with our international system of units (SI units) and some new developments in quantum Hall physics.”