Articles for 07/27/11 Qinqin Lü

Title: Quantum Gas with Interaction and Disorder

In short, I will talk about two articles:

1.
Phys. Rev. Lett. 106, 230401 (2011)
Can a Bose Gas Be Saturated?
2.
Nature Physics 6, 87-95 (2010)
Disordered quantum gases under control

Time: 07/27/2011 12-1pm. Bring your lunch! (as we don't provide lunch or cookies...yet...)
Location: Rm 435, Nicholson Hall

Full version:

I will first introduce some background such as:

- what is Bose Einstein condensation?
- Cold atom experiments involving optical lattice
- Interaction effects and phase transition

As a statistical example to show the interaction effects and to verify Einstein's theory as the correct theory at non-interacting limit, I will spend a little time on the 1st article:

Phys. Rev. Lett. 106, 230401 (2011)
Can a Bose Gas Be Saturated?
Naaman Tammuz, Robert P. Smith, Robert L. D. Campbell, Scott Beattie, Stuart Moulder, Jean Dalibard, and Zoran Hadzibabic

link

Then, when bringing in disorder, novel phenomena such as Anderson localization of matter-waves can be observed. This part will focus on the 2nd article:

Nature Physics 6, 87-95 (2010)
Disordered quantum gases under control
Laurent Sanchez-Palencia & Maciej Lewenstein

link

The latter part is not exactly what I am working on so hopefully I won't be standing blank-minded too much.