Superfluidity in Atomic Bose Gases

Professor Kristian Helmerson

School of Physics, Monash University

3:30 pm Friday, 6 November 2009, EN101 (Ground Floor, EN Building), Hawthorn.

Liquid helium is a many-body system that exhibits remarkable properties at sufficiently low temperatures. One such property is superfluidity in which the fluid can flow without any dissipation. Bose-Einstein condensation of a dilute atomic gas in 1995 marked the appearance of another “quantum liquid” displaying similar remarkable
properties. In my talk, I will describe some aspects of superfluidity, why they are still interesting and experiments to study these aspects using quantum degenerate atomic Bose gases.

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