[Physstaff] Seminar by Prof. Xuzong Chen, 26th Jan (tomorrow), 11.00 am, JA5.05

[Stefan Kuhr]

Dear all,

I would like to invite everyone to join a special Optics Division seminar tomorrow:

Speaker:	Prof. Xuzong Chen, Quantum Electronics Institute, Peking University
Title: 		Quantum Gas: From ground to Space - A New Challenge for Quantum Technology
Date: 		26 Jan 2016
Time: 		11.00 am
Location: 	JA 5.05
Abstract:  
Phase transition is a popular phenomenon in nature - at a temperature below the critical temperature, a normal Bose gas would undergo a transition to a quantum gas, which behaves as superfluid. For an optical lattice, the optical lattice depth is also a parameter which will cause a transition of the gas from the superfluid to Mott phase. For 1D optical lattices, there will be BKT phase transition while the temperature decreases from above to below the critical temperature. These cases happen at the ground band of the optical lattice, whereas for the excited bands, more interesting phenomena occur such as Bloch oscillations and Bloch-Zener oscillations. We developed several approaches to measure these transitions and to manipulate the phase transition. In order to get lower critical temperatures, such as pK, we proposed two-step cross beam cooling (TSC), which will be demonstrated on the ultracold atom rack which is due to be launched with Chinese space station in 2022. Many challenging phase-transition experiments will be implemented at the Chinese space station.


Best regards,

Stefan


===============================================================
Professor Stefan Kuhr
Department of Physics
University of Strathclyde
Glasgow, G4 0NG
United Kingdom

tel: +44-(0)141-548-3364
e-mail: stefan.kuhr at strath.ac.uk