"Dipolar quantum fluids and micro-mechanics with ultracold atoms"
Prof. Dan Stamper-Kurn (Berkely University, CA, USA)

I will present results from two separate experimental efforts in my group. First, I will present evidence for the importance of magnetic dipole interactions in the evolution of a degenerate spinor Bose gas of 87-Rb, and for an unforeseen crystalline phase of this gas. Second, I will describe the collective motion of ultracold atoms in a high-finesse optical cavity as a manifestation of quantum micro-mechanics, analogous to the motion of microfabricated mechanical resonators. Within this context, I will present the first observation of mechanical backaction on a macroscopic object at levels consistent with quantum metrology limits.