##
Doctoral thesis defense

Vortices and persistent currents in rotating Bose gases:
a diagonalization approach

### Sara Bargi

Mathematical Physics

**Friday, 1 October 2010, 14:15**

Lecture Hall B

**Abstract**:

The behavior of the ultra-cold Bose gas is often intriguing and
counter-intuitive. This applies particularly to the Bose gas under
rotation, which shows superfluid effects such as quantized vortices and
persistent currents. In my thesis, I investigate these phenomena by
diagonalizing the Hamiltonian. Among the results we find that several
quantities can be described by simple analytical expressions, and we
discover a rich variation of vortex states. I will here present some of
these results starting from a general physics approach.