Quantum Lunch Location:
T-Division Conference Room, TA-3,
Building 123, Room 121
Quantum Institute: Visitor Schedule
The Quantum Lunch is regularly held on Thursdays in the Theoretical Division Conference Room, TA-3, Building 123, Room 121.
For more information, contact Diego Dalvit.
To add your name to the Quantum Lunch email list, contact Charlotte Carter
Thursday, May 28, 2009
12:30 PM - 2:00 PM
Speaker: Ari Turner, University of California, Berkeley
Technical Host: Michael Forbes
TOPIC: Vortex Clusters in Condensates
Superfluids made from atoms with spins can form many different types
of vortices, unlike superfluid helium, which can support only
ordinary vortices. Ordinary vortices are surrounded by a stable
flow of atoms; the additional types of vortices also are wreathed by
spin patterns. The more symmetry the condensate has, the greater the
variety of vortices.
An imperfection in the symmetry causes some of types vortices to
form molecules, according to the laws of "vortex chemistry."
I will explain some applications: one application predicts
metastable vortex molecules for some types of condensates; the other
predicts the mass of a spin-current vortex by thinking of the vortex
as a bound state.