The University of Queensland

 

 

Centre for Mathematical Physics

 

SEMINAR

 

Speaker:          Prof. Peter Drummond, Physics, UQ

Title:           Mathematical challenge: the universal Fermion problem

 

10am, Wednesday 9th May, 2007

 

Priestley Building, room 641

 

Abstract:

 

Strongly interacting Fermi gases are of great current interest. Not only are fermions the most common particles in the universe, but they are also thought to have a universal thermodynamic behaviour for strong interactions.

This three-dimensional problem is remarkable challenge for the mathematical physicist. All interactions simply come from the boundary conditions. In addition, the correct wave-functions must be completely scale-invariant.

Recent experiments provide an unprecedented opportunity to test universality. We analyse results from three ultracold fermion experiments involving two completely distinct atomic species in different kinds of atomic-trap environment. The data are compared with the predictions of an approximate theory at UQ.


Excellent agreement is obtained, with no adjustable parameters.

 

All interested are invited to attend.

Enquiries to Katrina Hibberd email: keh@maths.uq.edu.au