Department of Mathematics

Mathematical Physics and Gauge Theory

  •  Soeren Petrat, IAS and Princeton
  •  Free dynamics of a tracer particle in a Fermi sea
  •  01/19/2017
  •  11:00 AM - 11:50 AM
  •  C304 Wells Hall

The talk is about the dynamics of a tracer particle coupled strongly to a dense non-interacting electron gas in one or two dimensions. I will present a recent result that shows that for high densities the tracer particle moves freely for very long times, i.e., the electron gas becomes transparent. However, the correct phase factor is non-trivial. To leading order, it is given by mean-field theory, but one also has to include a correction coming from immediate recollision diagrams.



Department of Mathematics
Michigan State University
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