Colloquium Fall 1995

Previous Terms


September 11

Relaxation at the Angle of Repose: The Physics of Granular Materials
Dr. Sidney Nagel
University of Chicago

September 18

Non-Unitary Field Theory and Complex Exponents: Signatures of Impending Catastrophes?
Dr. Hubert Saleur
Dept. of Physics & Astronomy, USC

September 25

Quantum Tunneling in Chemical and Biological Systems
Dr. Chi Mak
Dept. of Chemistry, USC

October 2

Formal Approaches to Natural Languages
Dr. Joseph Aoun

October 16

Frequency Doubling in Glass
Dr.Jack Feinberg
Dept. of Physics & Astronomy, USC

October 30

Gravitational Waves from (Super)String Cosmology: Production and Possible Detection
Dr. Ramy Brustein
CERN & Ben Gurion


An outline of cosmological evolution of the early universe within the framework of (super)string theory is presented. During an epoch of accelerated expansion of the universe gravitational radiation is produced. I describe the characteristic spectrum of the gravitational radiation, the detectors that may be used to measure it, and show that in some circumstances the relic gravitational radiation can actually be detected.

November 6

An Introduction to Berry's Phase
Dr. Krzysztof Pilch
Dept. of Physics & Astronomy, USC

November 13

Monopoles and Electric-Magnetic Duality
Dr. Dennis Nemeschansky
Dept. of Physics & Astronomy, USC

November 27

A New Class of Magnetic Impurities in Metals
Dr. Gerd Bergmann
Dept. of Physics & Astronomy, USC

  • Department of Physics and Astronomy
  • University of Southern California
  • 825 Bloom Walk
  • ACB 439
  • Los Angeles, CA 90089-0484